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Provide optimization in retrieval for non correlated filter expression evaluated to false [CORE5394] #5667

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firebird-automations opened this issue Nov 8, 2016 · 4 comments
Closed

Provide optimization in retrieval for non correlated filter expression evaluated to false [CORE5394] #5667

firebird-automations opened this issue Nov 8, 2016 · 4 comments
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component: engine priority: major resolution: duplicate type: improvement

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Submitted by: @livius2

Duplicates CORE1287

Votes: 1

Will be good to see that Firebird do not fetch streem if non correlated filter expresion evaluated to false

i suppose simplest possible case is:

SELECT * FROM RDB$RELLATIONS WHERE 1=0

will be good to see here 0 fetches
@firebird-automations
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Modified by: @livius2

description: Will be good to see that Firebird do not fetch streem if non correlated filter expresion evaluated to false

is uppose simplest possible case is:

SELECT * FROM RDB$RELLATIONS WHERE 1=0

will be good to see here 0 fetches

=>

Will be good to see that Firebird do not fetch streem if non correlated filter expresion evaluated to false

i suppose simplest possible case is:

SELECT * FROM RDB$RELLATIONS WHERE 1=0

will be good to see here 0 fetches

@firebird-automations
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Modified by: @dyemanov

Link: This issue duplicates CORE1287 [ CORE1287 ]

@firebird-automations
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Modified by: @dyemanov

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Duplicate [ 3 ]

@firebird-automations
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Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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