414c5a2ea6
This adds collation support for columns and domains, a COLLATE clause to override it per expression, and B-tree index support. Peter Eisentraut reviewed by Pavel Stehule, Itagaki Takahiro, Robert Haas, Noah Misch
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* parse_agg.h
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* handle aggregates and window functions in parser
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*
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* Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/parser/parse_agg.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PARSE_AGG_H
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#define PARSE_AGG_H
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#include "parser/parse_node.h"
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extern void transformAggregateCall(ParseState *pstate, Aggref *agg,
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List *args, List *aggorder,
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bool agg_distinct);
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extern void transformWindowFuncCall(ParseState *pstate, WindowFunc *wfunc,
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WindowDef *windef);
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extern void parseCheckAggregates(ParseState *pstate, Query *qry);
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extern void parseCheckWindowFuncs(ParseState *pstate, Query *qry);
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extern void build_aggregate_fnexprs(Oid *agg_input_types,
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int agg_num_inputs,
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Oid agg_state_type,
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Oid agg_result_type,
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Oid transfn_oid,
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Oid finalfn_oid,
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Oid collation,
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Expr **transfnexpr,
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Expr **finalfnexpr);
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#endif /* PARSE_AGG_H */
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