init

pg_include/parser/parse_agg.h

@@ -0,0 +1,37 @@
+/*-------------------------------------------------------------------------
+ *
+ * parse_agg.h
+ *	  handle aggregates and window functions in parser
+ *
+ * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/parser/parse_agg.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PARSE_AGG_H
+#define PARSE_AGG_H
+
+#include "parser/parse_node.h"
+
+extern void transformAggregateCall(ParseState *pstate, Aggref *agg,
+					   List *args, List *aggorder,
+					   bool agg_distinct);
+extern void transformWindowFuncCall(ParseState *pstate, WindowFunc *wfunc,
+						WindowDef *windef);
+
+extern void parseCheckAggregates(ParseState *pstate, Query *qry);
+extern void parseCheckWindowFuncs(ParseState *pstate, Query *qry);
+
+extern void build_aggregate_fnexprs(Oid *agg_input_types,
+						int agg_num_inputs,
+						Oid agg_state_type,
+						Oid agg_result_type,
+						Oid agg_input_collation,
+						Oid transfn_oid,
+						Oid finalfn_oid,
+						Expr **transfnexpr,
+						Expr **finalfnexpr);
+
+#endif   /* PARSE_AGG_H */