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postgresql/src/backend/parser
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Stephen Frost 088c83363a ALTER TABLE .. FORCE ROW LEVEL SECURITY 
To allow users to force RLS to always be applied, even for table owners,
add ALTER TABLE .. FORCE ROW LEVEL SECURITY.

row_security=off overrides FORCE ROW LEVEL SECURITY, to ensure pg_dump
output is complete (by default).

Also add SECURITY_NOFORCE_RLS context to avoid data corruption when
ALTER TABLE .. FORCE ROW SECURITY is being used. The
SECURITY_NOFORCE_RLS security context is used only during referential
integrity checks and is only considered in check_enable_rls() after we
have already checked that the current user is the owner of the relation
(which should always be the case during referential integrity checks).

Back-patch to 9.5 where RLS was added.
 		2015-10-04 21:05:08 -04:00
..
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
Makefile Refactor flex and bison make rules 2012-10-11 06:57:04 -04:00
README Revise collation derivation method and expression-tree representation. 2011-03-19 20:30:08 -04:00
analyze.c Fix several bugs related to ON CONFLICT's EXCLUDED pseudo relation. 2015-10-03 15:12:10 +02:00
check_keywords.pl Update copyright for 2015 2015-01-06 11:43:47 -05:00
gram.y ALTER TABLE .. FORCE ROW LEVEL SECURITY 2015-10-04 21:05:08 -04:00
keywords.c Update copyright for 2015 2015-01-06 11:43:47 -05:00
kwlookup.c Update copyright for 2015 2015-01-06 11:43:47 -05:00
parse_agg.c Share transition state between different aggregates when possible. 2015-08-04 17:53:10 +03:00
parse_clause.c Fix flattening of nested grouping sets. 2015-07-26 16:50:29 +02:00
parse_coerce.c Rename coerce_type() local variable. 2015-05-02 16:46:23 -04:00
parse_collate.c Add support for INSERT ... ON CONFLICT DO NOTHING/UPDATE. 2015-05-08 05:43:10 +02:00
parse_cte.c Update copyright for 2015 2015-01-06 11:43:47 -05:00
parse_expr.c Create new ParseExprKind for use by policy expressions. 2015-07-29 15:40:24 -07:00
parse_func.c Redesign tablesample method API, and do extensive code review. 2015-07-25 14:39:00 -04:00
parse_node.c Update copyright for 2015 2015-01-06 11:43:47 -05:00
parse_oper.c Setup cursor position for schema-qualified elements 2015-03-18 14:48:02 -03:00
parse_param.c Update copyright for 2015 2015-01-06 11:43:47 -05:00
parse_relation.c Fix several bugs related to ON CONFLICT's EXCLUDED pseudo relation. 2015-10-03 15:12:10 +02:00
parse_target.c Support GROUPING SETS, CUBE and ROLLUP. 2015-05-16 03:46:31 +02:00
parse_type.c pgindent run for 9.5 2015-05-23 21:35:49 -04:00
parse_utilcmd.c pgindent run for 9.5 2015-05-23 21:35:49 -04:00
parser.c Make operator precedence follow the SQL standard more closely. 2015-03-11 13:22:52 -04:00
scan.l Make operator precedence follow the SQL standard more closely. 2015-03-11 13:22:52 -04:00
scansup.c Update copyright for 2015 2015-01-06 11:43:47 -05:00

README 

src/backend/parser/README

Parser
======

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

parser.c	things start here
scan.l		break query into tokens
scansup.c	handle escapes in input strings
kwlookup.c	turn keywords into specific tokens
keywords.c	table of standard keywords (passed to kwlookup.c)
gram.y		parse the tokens and produce a "raw" parse tree
analyze.c	top level of parse analysis for optimizable queries
parse_agg.c	handle aggregates, like SUM(col1),  AVG(col2), ...
parse_clause.c	handle clauses like WHERE, ORDER BY, GROUP BY, ...
parse_coerce.c	handle coercing expressions to different data types
parse_collate.c	assign collation information in completed expressions
parse_cte.c	handle Common Table Expressions (WITH clauses)
parse_expr.c	handle expressions like col, col + 3, x = 3 or x = 4
parse_func.c	handle functions, table.column and column identifiers
parse_node.c	create nodes for various structures
parse_oper.c	handle operators in expressions
parse_param.c	handle Params (for the cases used in the core backend)
parse_relation.c support routines for tables and column handling
parse_target.c	handle the result list of the query
parse_type.c	support routines for data type handling
parse_utilcmd.c	parse analysis for utility commands (done at execution time)