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postgres/src/backend/parser
History
Hiroshi Inoue fd9ff86bd9
Trial implementation of ALTER DROP COLUMN. 		26 years ago
..
.cvsignore Add .cvsignore file so cvs doesn't complain if you have lex/yacc 27 years ago
Makefile Removed MBFLAGS from makefiles since it's now done in include/config.h. 26 years ago
README cleanup 28 years ago
analyze.c Simplify parsing of column constraints by treating constraint attributes 26 years ago
gram.y Simplify parsing of column constraints by treating constraint attributes 26 years ago
keywords.c Implement reindex command 26 years ago
parse_agg.c Carry column aliases from the parser frontend. Enables queries like 26 years ago
parse_clause.c Repair longstanding violation of SQL92 semantics: GROUP BY would 26 years ago
parse_coerce.c Add lztext to TypeCategory so that lztext OP text cases will work 26 years ago
parse_expr.c Someone (probably me) forgot about handling of typecasts applied to 26 years ago
parse_func.c Further cleanups for type coercion: treat the locution typename(argument) 26 years ago
parse_node.c Make make_const() check the size and precision of a T_Float Value, 26 years ago
parse_oper.c Fix poorly worded error messages for unary operator type resolution 26 years ago
parse_relation.c Trial implementation of ALTER DROP COLUMN. 26 years ago
parse_target.c Trial implementation of ALTER DROP COLUMN. 26 years ago
parse_type.c Add: 26 years ago
parser.c Add: 26 years ago
scan.l Change parse-time representation of float literals (which include oversize 26 years ago
scansup.c Add: 26 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