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postgres/src/backend/parser
History
Tom Lane 3437286356
Modify the parser's error reporting to include a specific hint for the case 		17 years ago
..
.cvsignore Remove all traces that suggest that a non-Bison yacc might be supported, and 18 years ago
Makefile Implement SQL-standard WITH clauses, including WITH RECURSIVE. 17 years ago
README Small wording improvements for source code READMEs. 18 years ago
analyze.c Improve parser error location for cases where an INSERT or UPDATE command 17 years ago
gram.y Implement SQL-standard WITH clauses, including WITH RECURSIVE. 17 years ago
keywords.c Implement SQL-standard WITH clauses, including WITH RECURSIVE. 17 years ago
parse_agg.c Implement SQL-standard WITH clauses, including WITH RECURSIVE. 17 years ago
parse_clause.c Fix the implicit-RTE code to be able to handle implicit RTEs for CTEs, as 17 years ago
parse_coerce.c When expanding a whole-row Var into a RowExpr during ResolveNew(), attach 17 years ago
parse_cte.c Modify the parser's error reporting to include a specific hint for the case 17 years ago
parse_expr.c When expanding a whole-row Var into a RowExpr during ResolveNew(), attach 17 years ago
parse_func.c Add a bunch of new error location reports to parse-analysis error messages. 18 years ago
parse_node.c Add a bunch of new error location reports to parse-analysis error messages. 18 years ago
parse_oper.c Improve the plan cache invalidation mechanism to make it invalidate plans 18 years ago
parse_relation.c Modify the parser's error reporting to include a specific hint for the case 17 years ago
parse_target.c Improve parser error location for cases where an INSERT or UPDATE command 17 years ago
parse_type.c Implement SQL-standard WITH clauses, including WITH RECURSIVE. 17 years ago
parse_utilcmd.c Add a bunch of new error location reports to parse-analysis error messages. 18 years ago
parser.c Remove all traces that suggest that a non-Bison yacc might be supported, and 18 years ago
scan.l Add a bunch of new error location reports to parse-analysis error messages. 18 years ago
scansup.c Update copyrights in source tree to 2008. 18 years ago

README 

$PostgreSQL: pgsql/src/backend/parser/README,v 1.10 2008/04/09 01:00:46 momjian Exp $

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
keywords.c	turn keywords into specific tokens
gram.y		parse the tokens and fill query-type-specific structures
analyze.c	top level of parse analysis for optimizable queries
parse_clause.c	handle clauses like WHERE, ORDER BY, GROUP BY, ...
parse_coerce.c	handle coercing expressions to different data types
parse_expr.c	handle expressions like col, col + 3, x = 3 or x = 4
parse_oper.c	handle operators 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 data type handling
parse_utilcmd.c	parse analysis for utility commands (done at execution time)