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help / color / mirror / Atom feedFrom: Subramanian,Ramachandran <[email protected]>
To: [email protected] <[email protected]>
Subject: How to surround a selected value with double quotes?
Date: Mon, 22 Jun 2026 07:46:09 +0000
Message-ID: <[email protected]> (raw)
Hello,
I wrote a script to analyze and run vacuum on tables that need it.
Sadly at the time I wrote the script, I never expected a schema name to be pure numbers.
So my Script does not work now.
I want to add double quote marks to each schema name and table name select. I tried using the CONCAT function, but it does not work as I expected it to.
I would be grateful if someone can help me understand the mistake I am making with the CONCAT.
Regards
Ram
The table 7464128.locale_7464128 in database data listening on port 5432 with size 303104 must be vacuumed . It has a XID gap of 5616
Use the command psql -p 5432 -d data -c " vacuum freeze 7464128.locale_7464128"
ERROR: trailing junk after numeric literal at or near "7464128.locale_7464128"
LINE 1: vacuum freeze analyze 7464128.locale_7464128
^
data=# \dt *.locale_7464128
List of relations
Schema | Name | Type | Owner
---------+----------------+-------+----------
7464128 | locale_7464128 | table | postgres
(1 row)
data=# vacuum freeze analyze 7464128.locale_7464128 ;
ERROR: trailing junk after numeric literal at or near "7464128.locale_7464128"
LINE 1: vacuum freeze analyze 7464128.locale_7464128 ;
^
data=# vacuum freeze analyze "7464128"."locale_7464128" ;
VACUUM
data=# \q
#Build the SQL needed to get the list of tables that are approaching the SAFE_XID_GAP
LIST_OLDEST_UNFROZEN_XID_SQL=" SELECT \
cast (age(PGCL.relfrozenxid) as integer) as GAP, \
INTB.table_catalog as DB_NAME, \
"$PORT_NO" , \
CONCAT('"',INTB.table_schema,'"') || '.' || \
CONCAT('"',PGCL.relname,'"') as TABLE_NAME, \
pg_table_size(PGCL.oid) as TABLE_SIZE \
FROM \
pg_class PGCL, \
information_schema.tables INTB \
WHERE \
PGCL.relname=INTB.table_name \
AND \
PGCL.relkind='r' \
AND \
age(PGCL.relfrozenxid) > "$SAFE_XID_GAP" \
ORDER BY \
1 DESC ;"
Freundliche Grüße
i. A. Ramachandran Subramanian
Zentralbereich Informationstechnologie
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