postgresql/src/backend/parser
Thomas G. Lockhart 07c1837f50 Change elog WARN messages for UNIQUE and PRIMARY, FOREIGN KEY
to NOTICE messages so that execution proceeds rather than halting.
 These clauses are ignored as stated in the messages.
Allow NOT NULL UNIQUE syntax (both were allowed individually before).
Allow Postgres-style casting ("::") of non-constants.
1997-11-30 23:11:10 +00:00
..
analyze.c Cleanup up include files. 1997-11-26 01:14:33 +00:00
gram.y Change elog WARN messages for UNIQUE and PRIMARY, FOREIGN KEY 1997-11-30 23:11:10 +00:00
keywords.c Cleanup up include files. 1997-11-26 01:14:33 +00:00
Makefile Break parser functions into smaller files, group together. 1997-11-25 22:07:18 +00:00
parse_agg.c Make parser functions static where possible. 1997-11-26 03:43:18 +00:00
parse_clause.c Make parser functions static where possible. 1997-11-26 03:43:18 +00:00
parse_expr.c Make parser functions static where possible. 1997-11-26 03:43:18 +00:00
parse_func.c Make parser functions static where possible. 1997-11-26 03:43:18 +00:00
parse_node.c Make parser functions static where possible. 1997-11-26 03:43:18 +00:00
parse_oper.c Make parser functions static where possible. 1997-11-26 03:43:18 +00:00
parse_relation.c Make parser functions static where possible. 1997-11-26 03:43:18 +00:00
parse_target.c Make parser functions static where possible. 1997-11-26 03:43:18 +00:00
parse_type.c Cleanup up include files. 1997-11-26 01:14:33 +00:00
parser.c Cleanup up include files. 1997-11-26 01:14:33 +00:00
README Cleaups of comments. 1997-11-27 02:23:02 +00:00
scan.c Add comments and move a few declaration blocks to help readability. 1997-11-30 23:05:39 +00:00
scan.l Add comments and move a few declaration blocks to help readability. 1997-11-30 23:05:39 +00:00
scansup.c Cleanup up include files. 1997-11-26 01:14:33 +00:00

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_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 like date_part(col3), trim(col4), ...

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