type_sanity.sql
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:5k
- --
- -- Sanity checks for common errors in making type-related system tables:
- -- pg_type, pg_class, pg_attribute.
- --
- -- None of the SELECTs here should ever find any matching entries,
- -- so the expected output is easy to maintain ;-).
- -- A test failure indicates someone messed up an entry in the system tables.
- --
- -- NB: we assume the oidjoins test will have caught any dangling links,
- -- that is OID or REGPROC fields that are not zero and do not match some
- -- row in the linked-to table. However, if we want to enforce that a link
- -- field can't be 0, we have to check it here.
- -- **************** pg_type ****************
- -- Look for illegal values in pg_type fields.
- SELECT p1.oid, p1.typname
- FROM pg_type as p1
- WHERE (p1.typlen <= 0 AND p1.typlen != -1) OR
- (p1.typtype != 'b' AND p1.typtype != 'c') OR
- NOT p1.typisdefined OR
- (p1.typalign != 'c' AND p1.typalign != 's' AND
- p1.typalign != 'i' AND p1.typalign != 'd');
- -- Look for "pass by value" types that can't be passed by value.
- SELECT p1.oid, p1.typname
- FROM pg_type as p1
- WHERE p1.typbyval AND
- (p1.typlen != 1 OR p1.typalign != 'c') AND
- (p1.typlen != 2 OR p1.typalign != 's') AND
- (p1.typlen != 4 OR p1.typalign != 'i');
- -- Look for complex types that do not have a typrelid entry,
- -- or basic types that do.
- SELECT p1.oid, p1.typname
- FROM pg_type as p1
- WHERE (p1.typtype = 'c' AND p1.typrelid = 0) OR
- (p1.typtype != 'c' AND p1.typrelid != 0);
- -- Conversion routines must be provided except in 'c' entries.
- SELECT p1.oid, p1.typname
- FROM pg_type as p1
- WHERE p1.typtype != 'c' AND
- (p1.typinput = 0 OR p1.typoutput = 0 OR
- p1.typreceive = 0 OR p1.typsend = 0);
- -- Check for bogus typinput routines
- -- FIXME: ought to check prorettype, but there are special cases that make it
- -- hard: prorettype might be binary-compatible with the type but not the same,
- -- and for array types array_in's result has nothing to do with anything.
- SELECT p1.oid, p1.typname, p2.oid, p2.proname
- FROM pg_type AS p1, pg_proc AS p2
- WHERE p1.typinput = p2.oid AND p1.typtype = 'b' AND
- (p2.pronargs != 1 OR p2.proretset) AND
- (p2.pronargs != 3 OR p2.proretset OR p2.proargtypes[2] != 23);
- -- Check for bogus typoutput routines
- -- The first OR subclause detects bogus non-array cases,
- -- the second one detects bogus array cases.
- -- FIXME: ought to check prorettype, but not clear what it should be.
- SELECT p1.oid, p1.typname, p2.oid, p2.proname
- FROM pg_type AS p1, pg_proc AS p2
- WHERE p1.typoutput = p2.oid AND p1.typtype = 'b' AND
- (p2.pronargs != 1 OR p2.proretset) AND
- (p2.pronargs != 2 OR p2.proretset OR p1.typelem = 0);
- -- Check for bogus typreceive routines
- -- FIXME: ought to check prorettype, but there are special cases that make it
- -- hard: prorettype might be binary-compatible with the type but not the same,
- -- and for array types array_in's result has nothing to do with anything.
- SELECT p1.oid, p1.typname, p2.oid, p2.proname
- FROM pg_type AS p1, pg_proc AS p2
- WHERE p1.typreceive = p2.oid AND p1.typtype = 'b' AND
- (p2.pronargs != 1 OR p2.proretset) AND
- (p2.pronargs != 3 OR p2.proretset OR p2.proargtypes[2] != 23);
- -- Check for bogus typsend routines
- -- The first OR subclause detects bogus non-array cases,
- -- the second one detects bogus array cases.
- -- FIXME: ought to check prorettype, but not clear what it should be.
- SELECT p1.oid, p1.typname, p2.oid, p2.proname
- FROM pg_type AS p1, pg_proc AS p2
- WHERE p1.typsend = p2.oid AND p1.typtype = 'b' AND
- (p2.pronargs != 1 OR p2.proretset) AND
- (p2.pronargs != 2 OR p2.proretset OR p1.typelem = 0);
- -- **************** pg_class ****************
- -- Look for illegal values in pg_class fields
- SELECT p1.oid, p1.relname
- FROM pg_class as p1
- WHERE (p1.relkind != 'r' AND p1.relkind != 'i' AND
- p1.relkind != 's' AND p1.relkind != 'S');
- -- Indexes should have an access method, others not.
- SELECT p1.oid, p1.relname
- FROM pg_class as p1
- WHERE (p1.relkind = 'i' AND p1.relam = 0) OR
- (p1.relkind != 'i' AND p1.relam != 0);
- -- **************** pg_attribute ****************
- -- Look for illegal values in pg_attribute fields
- SELECT p1.oid, p1.attrelid, p1.attname
- FROM pg_attribute as p1
- WHERE p1.attrelid = 0 OR p1.atttypid = 0 OR p1.attnum = 0 OR
- p1.attcacheoff != -1;
- -- Look for duplicate pg_attribute entries
- -- (This would not be necessary if the indexes on pg_attribute were UNIQUE?)
- SELECT p1.oid, p1.attname, p2.oid, p2.attname
- FROM pg_attribute AS p1, pg_attribute AS p2
- WHERE p1.oid != p2.oid AND
- p1.attrelid = p2.attrelid AND
- (p1.attname = p2.attname OR p1.attnum = p2.attnum);
- -- Cross-check attnum against parent relation
- SELECT p1.oid, p1.attname, p2.oid, p2.relname
- FROM pg_attribute AS p1, pg_class AS p2
- WHERE p1.attrelid = p2.oid AND p1.attnum > p2.relnatts;
- -- Detect missing pg_attribute entries: should have as many non-system
- -- attributes as parent relation expects
- SELECT p1.oid, p1.relname
- FROM pg_class AS p1
- WHERE p1.relnatts != (SELECT count(*) FROM pg_attribute AS p2
- WHERE p2.attrelid = p1.oid AND p2.attnum > 0);
- -- Cross-check against pg_type entry
- SELECT p1.oid, p1.attname, p2.oid, p2.typname
- FROM pg_attribute AS p1, pg_type AS p2
- WHERE p1.atttypid = p2.oid AND
- (p1.attlen != p2.typlen OR
- p1.attalign != p2.typalign OR
- p1.attbyval != p2.typbyval);