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36ea26793a
postgresql/src/backend/parser
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Peter Eisentraut 36ea26793a Add optional drop behavior clause to REVOKE command, for SQL conformance. 
Currently, only RESTRICT is allowed.
2003-01-10 11:02:51 +00:00
..
.cvsignore
analyze.c Enforces NOT NULL constraints to be applied against new PRIMARY KEY 2003-01-02 19:29:22 +00:00
gram.y Add optional drop behavior clause to REVOKE command, for SQL conformance. 2003-01-10 11:02:51 +00:00
keywords.c Preliminary code review for domain CHECK constraints patch: add documentation, 2002-12-12 20:35:16 +00:00
Makefile Arrange to compile flex output files as inclusions into other files 2002-11-01 22:52:34 +00:00
parse_agg.c
parse_clause.c Fix ALTER TABLE ADD COLUMN to disallow the same column types that are 2002-12-16 18:39:22 +00:00
parse_coerce.c Preliminary code review for domain CHECK constraints patch: add documentation, 2002-12-12 20:35:16 +00:00
parse_expr.c Adjust parser so that 'x NOT IN (subselect)' is converted to 2003-01-09 20:50:53 +00:00
parse_func.c Phase 2 of read-only-plans project: restructure expression-tree nodes 2002-12-12 15:49:42 +00:00
parse_node.c Preliminary code review for domain CHECK constraints patch: add documentation, 2002-12-12 20:35:16 +00:00
parse_oper.c Tighten selection of equality and ordering operators for grouping 2002-11-29 21:39:12 +00:00
parse_relation.c Phase 2 of read-only-plans project: restructure expression-tree nodes 2002-12-12 15:49:42 +00:00
parse_target.c Preliminary code review for domain CHECK constraints patch: add documentation, 2002-12-12 20:35:16 +00:00
parse_type.c
parser.c
README
scan.l Add cast to suppress compile warning on Alphas. 2002-11-11 03:33:38 +00:00
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