fetch limit vs FrontBase
fetch limit vs FrontBase
- Subject: fetch limit vs FrontBase
- From: OC <email@hidden>
- Date: Thu, 05 Mar 2015 14:16:43 +0100
Hello there,
unless I am missing something, it looks like with FrontBase, EOF/Wonder alas limits fetches application-side, e.g., my code
===
def fs=...
fs.fetchLimit=1
ec.objectsWithFetchSpecification(fs)
===
with SQL logging switched on yields a result of
===
14:00:57.072 DEBUG === Begin Internal Transaction
14:00:57.073 DEBUG evaluateExpression: <com.webobjects.jdbcadaptor.FrontbasePlugIn$FrontbaseExpression: "SELECT t0."C_EDITED_AUCTION_ID", t0."C_CREATION_DATE", t0."C_CREATOR_ID", t0."C_IP_ADDRESS", t0."C_KIND", t0."C_MARKET_ID", t0."C_TITLE", t0."C_UID", t0."C_EDITED_USER_ID" FROM "T_AUDIT" t0 ORDER BY t0."C_CREATION_DATE" ASC" withBindings: >
14:00:57.592 DEBUG fetch canceled
14:00:57.592 DEBUG 1 row(s) processed
14:00:57.600 DEBUG === Commit Internal Transaction
===
FrontBase, nevertheless, does support fetch limits with the TOP syntax, e.g., this SQL would work database-level:
===
SELECT TOP(1) t0."C_EDITED_AUCTION_ID", t0."C_CREATION_DATE", t0."C_CREATOR_ID", t0."C_IP_ADDRESS", t0."C_KIND", t0."C_MARKET_ID", t0."C_TITLE", t0."C_UID", t0."C_EDITED_USER_ID" FROM "T_AUDIT" t0 ORDER BY t0."C_CREATION_DATE" ASC
===
Is there anything I could do to fix that my applicatio(s) really use this and don't try to fetch the complete table?
Thanks,
OC
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