casacore::TableParseSelect Class Reference

Select-class for flex/bison scanner/parser for TableParse. More...

#include <TableParse.h>

Public Types
enum	CommandType { PSELECT, PUPDATE, PINSERT, PDELETE, PCOUNT, PCALC, PCRETAB, PALTTAB }
enum	GroupAggrType { GROUPBY, AGGR_FUNCS, ONLY_COUNTALL }
Public Member Functions
	TableParseSelect (CommandType type)
	Construct.
	~TableParseSelect ()
	Destructor.
CommandType	commandType () const
	Return the command type.
TableExprNode	getNode () const
	Return the expression node.
void	makeTableNoFrom (const vector< TableParseSelect * > &stack)
	Create a temporary table in no tables are given in FROM.
void	execute (Bool showTimings, Bool setInGiving, Bool mustSelect, uInt maxRow, Bool doTracing=False)
	Execute the select command (select/sort/projection/groupby/having/giving).
Table	doFromQuery (Bool showTimings)
	Execute a query in a from clause resulting in a Table.
TableExprNode	doSubQuery (Bool showTimings)
	Execute a subquery and create an appropriate node for the result.
TableExprNode	doExists (Bool noexists, Bool showTimings)
	Test if a subquery has sufficient elements.
void	show (ostream &os) const
	Show the expression tree.
void	handleWhere (const TableExprNode &)
	Keep the selection expression.
void	handleGroupby (const vector< TableExprNode > &, Bool rollup)
	Keep the groupby expressions.
void	handleHaving (const TableExprNode &)
	Keep the having expression.
void	handleCalcComm (const TableExprNode &)
	Keep the expression of a calculate command.
void	handleCreTab (const Record &dmInfo)
	Keep the create table command.
void	handleColSpec (const String &columnName, const String &dataType, const Record &spec, Bool isCOrder=False)
	Keep the column specification in a create table command.
void	handleAltTab ()
	Reopen the table (for update) used in the ALTER TABLE command.
void	handleAddCol (const Record &dmInfo)
	Add columns to the table of ALTER TABLE.
ValueHolder	getRecFld (const String &name)
	Add a keyword or replace a keyword with the value of another keyword.
void	handleSetKey (const String &name, const String &dtype, const ValueHolder &value)
	Add a keyword or replace a keyword with a value.
void	handleRenameKey (const String &oldName, const String &newName)
	Rename a table or column keyword.
void	handleRemoveKey (const String &name)
	Remove a table or column keyword.
TableRecord &	findKeyword (const String &name, String &keyName)
	Split the given name into optional shorthand, column and fields.
void	addUpdate (TableParseUpdate *upd)
	Add an update object.
void	setInsertExprs (const std::vector< TableExprNode > exprs)
	Set the insert expressions for all rows.
void	handleUpdate ()
	Keep the update expressions.
void	handleInsert ()
	Make ready for the insert expression.
void	handleInsert (TableParseSelect *sel)
void	handleCount ()
	Make ready for a COUNT command.
void	handleSort (const std::vector< TableParseSort > &sortList, Bool noDuplicates, Sort::Order defaultSortOrder)
	Keep the sort expressions.
void	handleLimit (const TableExprNodeSetElem &expr)
	Evaluate and keep limit/offset/stride given as start:end:incr.
void	handleLimit (const TableExprNode &expr)
	Evaluate and keep the limit value.
void	handleOffset (const TableExprNode &expr)
	Evaluate and keep the offset value.
void	handleAddRow (const TableExprNode &expr)
	Evaluate and add the rows.
void	addTable (Int tabnr, const String &name, const Table &table, const String &shorthand, const vector< const Table * > tempTables, const vector< TableParseSelect * > &stack)
	Add a table nr, name, or object to the container.
Table	makeTable (Int tabnr, const String &name, const Table &ftab, const String &shorthand, const vector< const Table * > tempTables, const vector< TableParseSelect * > &stack, Bool alwaysOpen=True)
	Make a Table object for given name, seqnr or so.
void	replaceTable (const Table &table)
	Replace the first table (used by CALC command).
TableExprNode	handleKeyCol (const String &name, Bool tryProj)
	Find the keyword or column name and create a TableExprNode from it.
TableExprNode	handleFunc (const String &name, const TableExprNodeSet &arguments, const TaQLStyle &)
	Handle a function.
void	handleColumn (Int type, const String &name, const TableExprNode &expr, const String &newName, const String &nameMask, const String &newDtype)
	Add a column to the list of column names.
void	handleColumnFinish (Bool distinct)
	Finish the addition of columns to the list of column names.
void	setDMInfo (const Record &dminfo)
	Set the DataManager info for a new table.
void	handleGiving (const String &name, const Record &type)
	Handle the name and type given in a GIVING clause.
void	handleGiving (const TableExprNodeSet &)
	Handle the set given in a GIVING clause.
const Block< String > &	getColumnNames () const
	Get the projected column names.
const Table &	getTable () const
	Get the resulting table.
Static Public Member Functions
static void	setRecFld (RecordInterface &rec, const String &name, const String &dtype, const ValueHolder &vh)
	Define a field with the given data type in the Record.
static String	getTypeString (const String &typeStr, DataType type)
	Get the type string.
static TableExprNode	handleSlice (const TableExprNode &array, const TableExprNodeSet &indices, const TaQLStyle &)
	Handle a slice operator.
static TableExprNode	makeFuncNode (TableParseSelect *, const String &name, const TableExprNodeSet &arguments, const Vector< int > &ignoreFuncs, const Table &table, const TaQLStyle &)
	Make a function object node for the given function name and arguments.
static void	checkAggrFuncs (const TableExprNode &node)
	An exception is thrown if the node uses an aggregate function.
static Bool	splitName (String &shorthand, String &columnName, Vector< String > &fieldNames, const String &name, Bool checkError, Bool isKeyword, Bool allowNoKey)
	Split a name into its parts (shorthand, column and field names).
Private Member Functions
Int	testGroupAggr (vector< TableExprNodeRep * > &aggr) const
	Test if groupby or aggregate functions are given.
vector< TableExprNodeRep * >	getAggrNodes () const
	Get the aggregate functions used in SELECT and HAVING.
void	doUpdate (Bool showTimings, const Table &origTable, Table &updTable, const Vector< uInt > &rownrs, const CountedPtr< TableExprGroupResult > &groups=CountedPtr< TableExprGroupResult >())
	Do the update step.
Table	doInsert (Bool showTimings, Table &table)
	Do the insert step and return a selection containing the new rows.
void	doDelete (Bool showTimings, Table &table)
	Do the delete step.
Table	doCount (Bool showTimings, const Table &)
	Do the count step returning a memory table containing the unique column values and the counts of the column values.
Table	doProject (Bool showTimings, const Table &, const CountedPtr< TableExprGroupResult > &groups=CountedPtr< TableExprGroupResult >())
	Do the projection step returning a table containing the projection.
Table	doProjectExpr (Bool useSel, const CountedPtr< TableExprGroupResult > &groups)
	Do the projection containing column expressions.
Table	createTable (const TableDesc &td, Int64 nrow, const Record &dmInfo)
	Create a table using the given parameters.
void	makeProjectExprTable ()
	Make the (empty) table for the epxression in the SELECT clause.
void	makeProjectExprSel ()
	Fill projectExprSelColumn_p telling the columns to be projected at the first stage.
void	addApplySelNode (const TableExprNode &node)
	Add a column node to applySelNodes_p.
Table	adjustApplySelNodes (const Table &)
	Set the selected rows for the column objects in applySelNodes_p.
CountedPtr< TableExprGroupResult >	doGroupby (bool showTimings, vector< TableExprNodeRep * > aggrNodes, Int groupAggrUsed)
	Do the groupby/aggregate step and return its result.
void	doHaving (Bool showTimings, const CountedPtr< TableExprGroupResult > &groups)
	Do the HAVING step.
CountedPtr< TableExprGroupResult >	doOnlyCountAll (TableExprNodeRep *aggrNode)
	Do a groupby/aggregate step that only does a 'select count(*)'.
CountedPtr< TableExprGroupResult >	doGroupByAggr (const vector< TableExprNodeRep * > &aggrNodes)
	Do a full groupby/aggregate step.
void	doSort (Bool showTimings)
	Do the sort step.
void	doLimOff (Bool showTimings)
	Do the limit/offset step.
Table	doLimOff (Bool showTimings, const Table &table)
Table	doDistinct (Bool showTimings, const Table &table)
	Do the 'select distinct' step.
Table	doFinish (Bool showTimings, Table &table)
	Finish the table (rename, copy, and/or flush).
template<typename TCOL , typename TNODE >
void	updateValue (uInt row, const TableExprId &rowid, Bool isScalarCol, const TableExprNode &node, const Array< Bool > &mask, Bool maskFirst, TableColumn &col, const Slicer *slicerPtr, ArrayColumn< Bool > &maskCol)
	Update the values in the columns (helpers of doUpdate).
template<typename TCOL , typename TNODE >
void	updateScalar (uInt row, const TableExprId &rowid, const TableExprNode &node, TableColumn &col)
template<typename TCOL , typename TNODE >
void	updateArray (uInt row, const TableExprId &rowid, const TableExprNode &node, const Array< TNODE > &res, ArrayColumn< TCOL > &col)
template<typename TCOL , typename TNODE >
void	updateSlice (uInt row, const TableExprId &rowid, const TableExprNode &node, const Array< TNODE > &res, const Slicer &slice, ArrayColumn< TCOL > &col)
template<typename TCOL , typename TNODE >
void	copyMaskedValue (uInt row, ArrayColumn< TCOL > &acol, const Slicer slicerPtr, const TNODE val, uInt incr, const Array< Bool > &mask)
Array< Bool >	makeMaskSlice (const Array< Bool > &mask, Bool maskFirst, const IPosition &shapeCol, const Slicer *slicerPtr)
void	checkMaskColumn (Bool hasMask, const ArrayColumn< Bool > &maskCol, const TableColumn &col)
DataType	makeDataType (DataType dtype, const String &dtstr, const String &colName)
	Make a data type from the string.
Sort::Order	getOrder (const TableParseSort &key) const
	Get the order for this key.
TableExprNode	getColSet ()
	Make an array from the contents of a column in a subquery.
TableExprNode	makeSubSet () const
	Make a set from the results of the subquery.
Int64	evalIntScaExpr (const TableExprNode &expr) const
	Evaluate an int scalar expression.
Table	findTable (const String &shorthand) const
	Find a table for the given shorthand.
void	handleWildColumn (Int stringType, const String &name)
	Handle the selection of a wildcarded column name.
void	addColumnDesc (TableDesc &td, DataType dtype, const String &colName, Int options, Int ndim, const IPosition &shape, const String &dmType, const String &dmGroup, const String &comment, const TableRecord &keywordSet, const String &unitName)
	Add the description of a column to the table description.
Block< String >	getStoredColumns (const Table &tab) const
	Find the names of all stored columns in a table.
void	checkTableProjSizes () const
	Check if the tables used in selection columns have the same size as the first table given in FROM.
template<typename T >
vector< CountedPtr < TableExprGroupFuncSet > >	doGroupByAggrSingleKey (const vector< TableExprNodeRep * > &aggrNodes)
	Create the set of aggregate functions and groupby keys in case a single groupby key is given.
vector< CountedPtr < TableExprGroupFuncSet > >	doGroupByAggrMultipleKeys (const vector< TableExprNodeRep * > &aggrNodes)
	Create the set of aggregate functions and groupby keys in case multiple keys are given.
Static Private Member Functions
static TableExprNode	makeUDFNode (TableParseSelect *, const String &name, const TableExprNodeSet &arguments, const Table &table, const TaQLStyle &)
	Try to make a UDF function node for the given function name and arguments.
static TableExprFuncNode::FunctionType	findFunc (const String &name, uInt narguments, const Vector< Int > &ignoreFuncs)
	Find the function code belonging to a function name.
static Table	tableKey (const String &fullName, const String &shorthand, const String &columnName, const Vector< String > &fieldNames, const vector< TableParseSelect * > &stack)
	Try to find the keyword representing a table in one of the tables in any select block (from inner to outer).
static Table	findTableKey (const Table &table, const String &columnName, const Vector< String > &keyNames)
	Try to find the keyword representing a table in the given table.
Private Attributes
CommandType	commandType_p
TableDesc	tableDesc_p
vector< TableParse >	fromTables_p
Block< String >	columnNames_p
Block< String >	columnNameMasks_p
Block< TableExprNode >	columnExpr_p
Block< String >	columnOldNames_p
Block< String >	columnDtypes_p
Block< TableRecord >	columnKeywords_p
uInt	nrSelExprUsed_p
Bool	distinct_p
String	resultName_p
uInt	resultType_p
Bool	resultCreated_p
StorageOption	storageOption_p
Table::EndianFormat	endianFormat_p
Bool	overwrite_p
Record	dminfo_p
TableExprNodeSet *	resultSet_p
TableExprNode	node_p
vector< TableExprNode >	groupbyNodes_p
Bool	groupbyRollup_p
TableExprNode	havingNode_p
Int64	limit_p
Int64	endrow_p
Int64	offset_p
Int64	stride_p
std::vector< TableParseUpdate * >	update_p
std::vector< TableExprNode >	insertExprs_p
TableParseSelect *	insSel_p
std::vector< TableParseSort >	sort_p
Bool	noDupl_p
Sort::Order	order_p
vector< TableExprNode >	applySelNodes_p
Table	table_p
Table	firstColTable_p
String	firstColName_p
Table	projectExprTable_p
Block< uInt >	projectExprSubset_p
Block< Bool >	projectExprSelColumn_p
Vector< uInt >	rownrs_p

Detailed Description

Select-class for flex/bison scanner/parser for TableParse.

Intended use:

Internal

Review Status

Reviewed By:: UNKNOWN
Date Reviewed:: before2004/08/25

Prerequisite

TableParse
TableGram.l and .y (flex and bison grammar)

Synopsis

This class is needed for the the actions in the flex scanner and bison parser. This stores the information by constructing TableParse objects as needed and storing them in a vector.

Motivation

It is necessary to be able to give a table select command in ASCII. This can be used in a CLI or in the table browser to get a subset of a table or to sort a table.

Definition at line 380 of file TableParse.h.

Member Enumeration Documentation

enum casacore::TableParseSelect::CommandType

Enumerator:

PSELECT
PUPDATE
PINSERT
PDELETE
PCOUNT
PCALC
PCRETAB
PALTTAB

Definition at line 383 of file TableParse.h.

enum casacore::TableParseSelect::GroupAggrType

Enumerator:

GROUPBY
AGGR_FUNCS
ONLY_COUNTALL

Definition at line 394 of file TableParse.h.

Constructor & Destructor Documentation

casacore::TableParseSelect::TableParseSelect ( CommandType type )

Construct.

casacore::TableParseSelect::~TableParseSelect ( )

Destructor.

Member Function Documentation

void casacore::TableParseSelect::addApplySelNode ( const TableExprNode & node ) [inline, private]

Add a column node to applySelNodes_p.

Definition at line 689 of file TableParse.h.

References applySelNodes_p.

void casacore::TableParseSelect::addColumnDesc	(	TableDesc &	td,
		DataType	dtype,
		const String &	colName,
		Int	options,
		Int	ndim,
		const IPosition &	shape,
		const String &	dmType,
		const String &	dmGroup,
		const String &	comment,
		const TableRecord &	keywordSet,
		const String &	unitName
	)			`[private]`

Add the description of a column to the table description.

ndim < 0 means a scalar column.

void casacore::TableParseSelect::addTable	(	Int	tabnr,
		const String &	name,
		const Table &	table,
		const String &	shorthand,
		const vector< const Table * >	tempTables,
		const vector< TableParseSelect * > &	stack
	)

Add a table nr, name, or object to the container.

void casacore::TableParseSelect::addUpdate ( TableParseUpdate * upd ) [inline]

Add an update object.

Definition at line 993 of file TableParse.h.

References update_p.

Table casacore::TableParseSelect::adjustApplySelNodes ( const Table & ) [private]

Set the selected rows for the column objects in applySelNodes_p.

These nodes refer the original table. They requires different row numbers than the selected groups and projected columns. rownrs_p is changed to use row 0..n. It returns the Table containing the subset of rows in the input Table.

static void casacore::TableParseSelect::checkAggrFuncs ( const TableExprNode & node ) [static]

An exception is thrown if the node uses an aggregate function.

void casacore::TableParseSelect::checkMaskColumn	(	Bool	hasMask,
		const ArrayColumn< Bool > &	maskCol,
		const TableColumn &	col
	)			`[private]`

void casacore::TableParseSelect::checkTableProjSizes ( ) const [private]

Check if the tables used in selection columns have the same size as the first table given in FROM.

CommandType casacore::TableParseSelect::commandType ( ) const [inline]

Return the command type.

Definition at line 407 of file TableParse.h.

References commandType_p.

template<typename TCOL , typename TNODE >

void casacore::TableParseSelect::copyMaskedValue	(	uInt	row,
		ArrayColumn< TCOL > &	acol,
		const Slicer *	slicerPtr,
		const TNODE *	val,
		uInt	incr,
		const Array< Bool > &	mask
	)			`[inline, private]`

Table casacore::TableParseSelect::createTable	(	const TableDesc &	td,
		Int64	nrow,
		const Record &	dmInfo
	)			`[private]`

Create a table using the given parameters.

The variables set by handleGiven are used for name and type.

Table casacore::TableParseSelect::doCount	(	Bool	showTimings,
		const Table &
	)			`[private]`

Do the count step returning a memory table containing the unique column values and the counts of the column values.

void casacore::TableParseSelect::doDelete	(	Bool	showTimings,
		Table &	table
	)			`[private]`

Do the delete step.

Table casacore::TableParseSelect::doDistinct	(	Bool	showTimings,
		const Table &	table
	)			`[private]`

Do the 'select distinct' step.

TableExprNode casacore::TableParseSelect::doExists	(	Bool	noexists,
		Bool	showTimings
	)

Test if a subquery has sufficient elements.

It uses default LIMIT=1, but that can be overidden in the subquery. The flag tells if NOT EXISTS or EXISTS was given.

Table casacore::TableParseSelect::doFinish	(	Bool	showTimings,
		Table &	table
	)			`[private]`

Finish the table (rename, copy, and/or flush).

Table casacore::TableParseSelect::doFromQuery ( Bool showTimings )

Execute a query in a from clause resulting in a Table.

CountedPtr<TableExprGroupResult> casacore::TableParseSelect::doGroupby	(	bool	showTimings,
		vector< TableExprNodeRep * >	aggrNodes,
		Int	groupAggrUsed
	)			`[private]`

Do the groupby/aggregate step and return its result.

CountedPtr<TableExprGroupResult> casacore::TableParseSelect::doGroupByAggr ( const vector< TableExprNodeRep * > & aggrNodes ) [private]

Do a full groupby/aggregate step.

vector<CountedPtr<TableExprGroupFuncSet> > casacore::TableParseSelect::doGroupByAggrMultipleKeys ( const vector< TableExprNodeRep * > & aggrNodes ) [private]

Create the set of aggregate functions and groupby keys in case multiple keys are given.

template<typename T >

vector<CountedPtr<TableExprGroupFuncSet> > casacore::TableParseSelect::doGroupByAggrSingleKey ( const vector< TableExprNodeRep * > & aggrNodes ) [inline, private]

Create the set of aggregate functions and groupby keys in case a single groupby key is given.

This offers much faster map access then doGroupByAggrMultiple.

We have to group the data according to the (possibly empty) groupby. We step through the table in the normal order which may not be the groupby order. A map<key,int> is used to keep track of the results where the int is the index in a vector of a set of aggregate function objects.

Loop through all rows. For each row generate the key to get the right entry.

Definition at line 827 of file TableParse.h.

References groupbyNodes_p, casacore::max(), rownrs_p, casacore::TableExprId::setRownr(), and casacore::ArrayBase::size().

void casacore::TableParseSelect::doHaving	(	Bool	showTimings,
		const CountedPtr< TableExprGroupResult > &	groups
	)			`[private]`

Do the HAVING step.

Table casacore::TableParseSelect::doInsert	(	Bool	showTimings,
		Table &	table
	)			`[private]`

Do the insert step and return a selection containing the new rows.

Table casacore::TableParseSelect::doLimOff	(	Bool	showTimings,
		const Table &	table
	)			`[private]`

void casacore::TableParseSelect::doLimOff ( Bool showTimings ) [private]

Do the limit/offset step.

CountedPtr<TableExprGroupResult> casacore::TableParseSelect::doOnlyCountAll ( TableExprNodeRep * aggrNode ) [private]

Do a groupby/aggregate step that only does a 'select count(*)'.

Table casacore::TableParseSelect::doProject	(	Bool	showTimings,
		const Table &	,
		const CountedPtr< TableExprGroupResult > &	groups = `CountedPtr< TableExprGroupResult >()`
	)			`[private]`

Do the projection step returning a table containing the projection.

Table casacore::TableParseSelect::doProjectExpr	(	Bool	useSel,
		const CountedPtr< TableExprGroupResult > &	groups
	)			`[private]`

Do the projection containing column expressions.

Use the selected or unselected columns depending on useSel.

void casacore::TableParseSelect::doSort ( Bool showTimings ) [private]

Do the sort step.

TableExprNode casacore::TableParseSelect::doSubQuery ( Bool showTimings )

Execute a subquery and create an appropriate node for the result.

void casacore::TableParseSelect::doUpdate	(	Bool	showTimings,
		const Table &	origTable,
		Table &	updTable,
		const Vector< uInt > &	rownrs,
		const CountedPtr< TableExprGroupResult > &	groups = `CountedPtr< TableExprGroupResult >()`
	)			`[private]`

Do the update step.

Rows 0,1,2,.. in UpdTable are updated from the expression result for the rows in the given rownrs vector.

Int64 casacore::TableParseSelect::evalIntScaExpr ( const TableExprNode & expr ) const [private]

Evaluate an int scalar expression.

void casacore::TableParseSelect::execute	(	Bool	showTimings,
		Bool	setInGiving,
		Bool	mustSelect,
		uInt	maxRow,
		Bool	doTracing = `False`
	)

Execute the select command (select/sort/projection/groupby/having/giving).

The setInGiving flag tells if a set in the GIVING part is allowed. The mustSelect flag tells if a SELECT command must do something. Usually that is required, but not for a SELECT in an INSERT command. Optionally the maximum nr of rows to be selected can be given. It will be used as the default value for the LIMIT clause. 0 = no maximum.

static TableExprFuncNode::FunctionType casacore::TableParseSelect::findFunc	(	const String &	name,
		uInt	narguments,
		const Vector< Int > &	ignoreFuncs
	)			`[static, private]`

Find the function code belonging to a function name.

Functions to be ignored can be given (as function type values). If the function name is unknown, NRFUNC is returned.

TableRecord& casacore::TableParseSelect::findKeyword	(	const String &	name,
		String &	keyName
	)

Split the given name into optional shorthand, column and fields.

Find the keywordset for it and fill in the final keyword name. It is a helper function for handleSetKey, etc.

Table casacore::TableParseSelect::findTable ( const String & shorthand ) const [private]

Find a table for the given shorthand.

If no shorthand is given, the first table is returned (if there). If not found, a null Table object is returned.

static Table casacore::TableParseSelect::findTableKey	(	const Table &	table,
		const String &	columnName,
		const Vector< String > &	keyNames
	)			`[static, private]`

Try to find the keyword representing a table in the given table.

If the columnName is empty, the keyword is a table keyword. If not found, a null Table object is returned.

vector<TableExprNodeRep*> casacore::TableParseSelect::getAggrNodes ( ) const [private]

Get the aggregate functions used in SELECT and HAVING.

TableExprNode casacore::TableParseSelect::getColSet ( ) [private]

Make an array from the contents of a column in a subquery.

const Block< String > & casacore::TableParseSelect::getColumnNames ( ) const [inline]

Get the projected column names.

Definition at line 987 of file TableParse.h.

References columnNames_p.

TableExprNode casacore::TableParseSelect::getNode ( ) const [inline]

Return the expression node.

Definition at line 411 of file TableParse.h.

References node_p.

Sort::Order casacore::TableParseSelect::getOrder ( const TableParseSort & key ) const [inline, private]

Get the order for this key.

Use the default order_p if not explicitly given with the key.

Definition at line 996 of file TableParse.h.

References casacore::TableParseSort::order(), order_p, and casacore::TableParseSort::orderGiven().

ValueHolder casacore::TableParseSelect::getRecFld ( const String & name )

Add a keyword or replace a keyword with the value of another keyword.

The keywords can be table or column keywords (col::key).

Block<String> casacore::TableParseSelect::getStoredColumns ( const Table & tab ) const [private]

Find the names of all stored columns in a table.

const Table & casacore::TableParseSelect::getTable ( ) const [inline]

Get the resulting table.

Definition at line 990 of file TableParse.h.

References table_p.

static String casacore::TableParseSelect::getTypeString	(	const String &	typeStr,
		DataType	type
	)			`[static]`

Get the type string.

If empty, it is made from the given data type.

void casacore::TableParseSelect::handleAddCol ( const Record & dmInfo )

Add columns to the table of ALTER TABLE.

The column descriptions have already been added to tableDesc_p.

void casacore::TableParseSelect::handleAddRow ( const TableExprNode & expr )

Evaluate and add the rows.

void casacore::TableParseSelect::handleAltTab ( )

Reopen the table (for update) used in the ALTER TABLE command.

void casacore::TableParseSelect::handleCalcComm ( const TableExprNode & )

Keep the expression of a calculate command.

void casacore::TableParseSelect::handleColSpec	(	const String &	columnName,
		const String &	dataType,
		const Record &	spec,
		Bool	isCOrder = `False`
	)

Keep the column specification in a create table command.

void casacore::TableParseSelect::handleColumn	(	Int	type,
		const String &	name,
		const TableExprNode &	expr,
		const String &	newName,
		const String &	nameMask,
		const String &	newDtype
	)

Add a column to the list of column names.

void casacore::TableParseSelect::handleColumnFinish ( Bool distinct )

Finish the addition of columns to the list of column names.

void casacore::TableParseSelect::handleCount ( )

Make ready for a COUNT command.

It checks if all column expressions are scalar.

void casacore::TableParseSelect::handleCreTab ( const Record & dmInfo )

Keep the create table command.

TableExprNode casacore::TableParseSelect::handleFunc	(	const String &	name,
		const TableExprNodeSet &	arguments,
		const TaQLStyle &
	)

Handle a function.

void casacore::TableParseSelect::handleGiving ( const TableExprNodeSet & )

Handle the set given in a GIVING clause.

void casacore::TableParseSelect::handleGiving	(	const String &	name,
		const Record &	type
	)

Handle the name and type given in a GIVING clause.

void casacore::TableParseSelect::handleGroupby	(	const vector< TableExprNode > &	,
		Bool	rollup
	)

Keep the groupby expressions.

It checks if they are all scalar expressions.

void casacore::TableParseSelect::handleHaving ( const TableExprNode & )

Keep the having expression.

void casacore::TableParseSelect::handleInsert ( TableParseSelect * sel )

void casacore::TableParseSelect::handleInsert ( )

Make ready for the insert expression.

The first one uses values (added via addUpdate), the second one a subquery.

TableExprNode casacore::TableParseSelect::handleKeyCol	(	const String &	name,
		Bool	tryProj
	)

Find the keyword or column name and create a TableExprNode from it.

If tryProj=True it is first tried if the column is a coluymn in the projected table (i.e., result from the SELECT part).

void casacore::TableParseSelect::handleLimit ( const TableExprNode & expr )

Evaluate and keep the limit value.

void casacore::TableParseSelect::handleLimit ( const TableExprNodeSetElem & expr )

Evaluate and keep limit/offset/stride given as start:end:incr.

void casacore::TableParseSelect::handleOffset ( const TableExprNode & expr )

Evaluate and keep the offset value.

void casacore::TableParseSelect::handleRemoveKey ( const String & name )

Remove a table or column keyword.

void casacore::TableParseSelect::handleRenameKey	(	const String &	oldName,
		const String &	newName
	)

Rename a table or column keyword.

void casacore::TableParseSelect::handleSetKey	(	const String &	name,
		const String &	dtype,
		const ValueHolder &	value
	)

Add a keyword or replace a keyword with a value.

The keyword can be a table or column keyword (col::key). The data type string can be empty leaving the data type unchanged.

static TableExprNode casacore::TableParseSelect::handleSlice	(	const TableExprNode &	array,
		const TableExprNodeSet &	indices,
		const TaQLStyle &
	)			`[static]`

Handle a slice operator.

void casacore::TableParseSelect::handleSort	(	const std::vector< TableParseSort > &	sortList,
		Bool	noDuplicates,
		Sort::Order	defaultSortOrder
	)

Keep the sort expressions.

void casacore::TableParseSelect::handleUpdate ( )

Keep the update expressions.

void casacore::TableParseSelect::handleWhere ( const TableExprNode & )

Keep the selection expression.

void casacore::TableParseSelect::handleWildColumn	(	Int	stringType,
		const String &	name
	)			`[private]`

Handle the selection of a wildcarded column name.

DataType casacore::TableParseSelect::makeDataType	(	DataType	dtype,
		const String &	dtstr,
		const String &	colName
	)			`[private]`

Make a data type from the string.

It checks if it is compatible with the given (expression) data type.

static TableExprNode casacore::TableParseSelect::makeFuncNode	(	TableParseSelect *	,
		const String &	name,
		const TableExprNodeSet &	arguments,
		const Vector< int > &	ignoreFuncs,
		const Table &	table,
		const TaQLStyle &
	)			`[static]`

Make a function object node for the given function name and arguments.

The ignoreFuncs vector contains invalid function codes.

Array<Bool> casacore::TableParseSelect::makeMaskSlice	(	const Array< Bool > &	mask,
		Bool	maskFirst,
		const IPosition &	shapeCol,
		const Slicer *	slicerPtr
	)			`[private]`

void casacore::TableParseSelect::makeProjectExprSel ( ) [private]

Fill projectExprSelColumn_p telling the columns to be projected at the first stage.

void casacore::TableParseSelect::makeProjectExprTable ( ) [private]

Make the (empty) table for the epxression in the SELECT clause.

TableExprNode casacore::TableParseSelect::makeSubSet ( ) const [private]

Make a set from the results of the subquery.

Table casacore::TableParseSelect::makeTable	(	Int	tabnr,
		const String &	name,
		const Table &	ftab,
		const String &	shorthand,
		const vector< const Table * >	tempTables,
		const vector< TableParseSelect * > &	stack,
		Bool	alwaysOpen = `True`
	)

Make a Table object for given name, seqnr or so.

If alwaysOpen=False the table will only be looked up, but not opened if not found. This is meant for concatenated tables in TaQLNodeHandler.

void casacore::TableParseSelect::makeTableNoFrom ( const vector< TableParseSelect * > & stack )

Create a temporary table in no tables are given in FROM.

static TableExprNode casacore::TableParseSelect::makeUDFNode	(	TableParseSelect *	,
		const String &	name,
		const TableExprNodeSet &	arguments,
		const Table &	table,
		const TaQLStyle &
	)			`[static, private]`

Try to make a UDF function node for the given function name and arguments.

void casacore::TableParseSelect::replaceTable ( const Table & table )

Replace the first table (used by CALC command).

void casacore::TableParseSelect::setDMInfo ( const Record & dminfo ) [inline]

Set the DataManager info for a new table.

Definition at line 591 of file TableParse.h.

References dminfo_p.

void casacore::TableParseSelect::setInsertExprs ( const std::vector< TableExprNode > exprs ) [inline]

Set the insert expressions for all rows.

Definition at line 503 of file TableParse.h.

References insertExprs_p.

static void casacore::TableParseSelect::setRecFld	(	RecordInterface &	rec,
		const String &	name,
		const String &	dtype,
		const ValueHolder &	vh
	)			`[static]`

Define a field with the given data type in the Record.

void casacore::TableParseSelect::show ( ostream & os ) const

Show the expression tree.

static Bool casacore::TableParseSelect::splitName	(	String &	shorthand,
		String &	columnName,
		Vector< String > &	fieldNames,
		const String &	name,
		Bool	checkError,
		Bool	isKeyword,
		Bool	allowNoKey
	)			`[static]`

Split a name into its parts (shorthand, column and field names).

True is returned if the name contained a keyword part. In that case fieldNames contains the keyword name and the possible subfields. The possible shorthand and the column name are filled in if it is a column keyword. If the name represents a column, fieldNames contains the subfields of the column (for the case where the column contains records). If the name is invalid, an exception is thrown if checkError=True. Otherwise the name is treated as a normal name without keyword. If allowEmtpy is True, :: is allowed, otherwise an error is thrown.

static Table casacore::TableParseSelect::tableKey	(	const String &	fullName,
		const String &	shorthand,
		const String &	columnName,
		const Vector< String > &	fieldNames,
		const vector< TableParseSelect * > &	stack
	)			`[static, private]`

Try to find the keyword representing a table in one of the tables in any select block (from inner to outer).

If not found, an exception is thrown.

Int casacore::TableParseSelect::testGroupAggr ( vector< TableExprNodeRep * > & aggr ) const [private]

Test if groupby or aggregate functions are given.

bit 0: on = groupby is given
bit 1: on = aggregate functions are given
bit 2: on = only select count(*) aggregate function is given

template<typename TCOL , typename TNODE >

void casacore::TableParseSelect::updateArray	(	uInt	row,
		const TableExprId &	rowid,
		const TableExprNode &	node,
		const Array< TNODE > &	res,
		ArrayColumn< TCOL > &	col
	)			`[inline, private]`

template<typename TCOL , typename TNODE >

void casacore::TableParseSelect::updateScalar	(	uInt	row,
		const TableExprId &	rowid,
		const TableExprNode &	node,
		TableColumn &	col
	)			`[inline, private]`

template<typename TCOL , typename TNODE >

void casacore::TableParseSelect::updateSlice	(	uInt	row,
		const TableExprId &	rowid,
		const TableExprNode &	node,
		const Array< TNODE > &	res,
		const Slicer &	slice,
		ArrayColumn< TCOL > &	col
	)			`[inline, private]`

template<typename TCOL , typename TNODE >

void casacore::TableParseSelect::updateValue	(	uInt	row,
		const TableExprId &	rowid,
		Bool	isScalarCol,
		const TableExprNode &	node,
		const Array< Bool > &	mask,
		Bool	maskFirst,
		TableColumn &	col,
		const Slicer *	slicerPtr,
		ArrayColumn< Bool > &	maskCol
	)			`[inline, private]`