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postgres/src/backend/parser
History
Peter Eisentraut 113fbe1264
Fix compiler warning 		19 years ago
..
.cvsignore Add .cvsignore file so cvs doesn't complain if you have lex/yacc 27 years ago
Makefile Re-introduce the yylex filter function formerly used to support UNION 20 years ago
README cleanup 28 years ago
analyze.c Update error messsage wording. 19 years ago
gram.y Support ORDER BY ... NULLS FIRST/LAST, and add ASC/DESC/NULLS FIRST/NULLS LAST 19 years ago
keywords.c Support ORDER BY ... NULLS FIRST/LAST, and add ASC/DESC/NULLS FIRST/NULLS LAST 19 years ago
parse_agg.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
parse_clause.c Change the planner-to-executor API so that the planner tells the executor 19 years ago
parse_coerce.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
parse_expr.c Fix compiler warning 19 years ago
parse_func.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
parse_node.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
parse_oper.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
parse_relation.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
parse_target.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
parse_type.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
parser.c Support ORDER BY ... NULLS FIRST/LAST, and add ASC/DESC/NULLS FIRST/NULLS LAST 19 years ago
scan.l Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago
scansup.c Update CVS HEAD for 2007 copyright. Back branches are typically not 19 years ago

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