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postgres
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postgres/src/backend/parser
History
Bruce Momjian e9edb3ef92
Fix for select 1;select 2 without trailing semi. 		27 years ago
..
.cvsignore
…
Makefile
…
README
…
analyze.c Change resjunk to a boolean. 27 years ago
gram.y Fix for select 1;select 2 without trailing semi. 27 years ago
keywords.c Add keywords to implement Vadim's transaction isolation 27 years ago
parse_agg.c Replaced targetlist entry in GroupClause by reference number 27 years ago
parse_clause.c Make postgres prompt backend>, and remove PARSEDEBUG. 27 years ago
parse_coerce.c Fix for DEFAULT ''. 27 years ago
parse_expr.c Fix for DEFAULT ''. 27 years ago
parse_func.c Fix for DEFAULT ''. 27 years ago
parse_node.c Fix for DEFAULT ''. 27 years ago
parse_oper.c
…
parse_relation.c Fix for DEFAULT ''. 27 years ago
parse_target.c Fix for DEFAULT ''. 27 years ago
parse_type.c
…
parser.c Rip out QueryTreeList structure, root and branch. Querytree 27 years ago
scan.l Keep long non-quoted numeric strings *as* untyped strings if they fail 27 years ago
scansup.c
…

README 

This directory does more than tokenize and parse SQL queries.  It also
creates Query structures for the various complex queries that is passed
to the optimizer and then executor.

parser.c	things start here
scan.l		break query into tokens
scansup.c	handle escapes in input
keywords.c	turn keywords into specific tokens
gram.y		parse the tokens and fill query-type-specific structures
analyze.c	handle post-parse processing for each query type
parse_clause.c	handle clauses like WHERE, ORDER BY, GROUP BY, ...
parse_coerce.c	used for coercing expressions of different types
parse_expr.c	handle expressions like col, col + 3, x = 3 or x = 4
parse_oper.c	handle operations in expressions
parse_agg.c	handle aggregates, like SUM(col1),  AVG(col2), ...
parse_func.c	handle functions, table.column and column identifiers
parse_node.c	create nodes for various structures
parse_target.c	handle the result list of the query
parse_relation.c support routines for tables and column handling
parse_type.c	support routines for type handling