Re: [GENERAL] Comparing a varchar of length > 32
Christian Enklaar wrote: Hello, we are using a table with a primary key of type varchar[50]. If we try to find entries with select * from where = ''; entries with a key length of more than 32 characters are not found. Entries with a shorter key are found. Using "Like" instead of "=" works for varchar keys with length > 32 as well. Does anybody know about this Problem ? (We use PostgresQL 7.4.1) I think you are hiding some informations. It works here with a 7.4.5 and I'm not aware of any bug like this in previous versions. test=# \d test Table "public.test" Column | Type | Modifiers +---+--- a | character varying(50) | not null Indexes: "test_pkey" primary key, btree (a) test=# select a, length(a) from test; a | length + 01234567890123456789012345678901234567890123 | 44 0123456789012345678901234567890123456789 | 40 01234567890123456789012345678901234567890123456789 | 50 (3 rows) test=# select length(a) from test where a = '01234567890123456789012345678901234567890123'; length 44 (1 row) Just an idea, could you reindex your table ? Regards Gaetano Mendola ---(end of broadcast)--- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
Re: [GENERAL] Comparing a varchar of length > 32
Christian Enklaar wrote: > we are using a table with a primary key of type varchar[50]. > If we try to find entries with select * from where > = ''; > entries with a key length of more than 32 characters are not found. > Entries with a shorter key are found. Using "Like" instead of "=" > works for varchar keys with length > 32 as well. Please post the actual table definitions, the actual data, the actual command you are running, and the actual results you are getting. -- Peter Eisentraut http://developer.postgresql.org/~petere/ ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])
[GENERAL] Comparing a varchar of length > 32
Hello, we are using a table with a primary key of type varchar[50]. If we try to find entries with select * from where = ''; entries with a key length of more than 32 characters are not found. Entries with a shorter key are found. Using "Like" instead of "=" works for varchar keys with length > 32 as well. Does anybody know about this Problem ? (We use PostgresQL 7.4.1) Thanks in advance, Christian Enklaar. ---(end of broadcast)--- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
