Improve performance of sp_describe_undeclared_parameters #2049
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…or-postgresql#2040) sp_describe_undeclared_parameters is slow. The issue is reported here: babelfish-for-postgresql#1317 Initially, we used to create a query in C for every parameter passed as an argument to sp_describe_undeclared_parameters and then execute it. This was taking huge amount of time as it used JOINS among multiple views like sys.objects, sys.columns, sys.types T. In this commit, we have replaced the use of such views as much as possible with pg catalogs. This aids to the improvement in performance. Task: BABEL-3705 Signed-off-by: Shameem Ahmed <[email protected]>
shardgupta
approved these changes
Nov 22, 2023
shardgupta
merged commit 91dac8b
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babelfish-for-postgresql:BABEL_2_7_STABLE
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Description
sp_describe_undeclared_parameters is slow. The issue is reported here: #1317.
Initially, we used to create a query in C for every parameter passed as an argument to sp_describe_undeclared_parameters and then execute it. This was taking huge amount of time as it used JOINS among multiple views like sys.objects, sys.columns, sys.types T. In this commit, we have replaced the use of such views as much as possible with pg catalogs. This aids to the improvement in performance.
The changes are tested locally.
Performance improvements (All the times are in ms):
-------------- INSERT --------------
-------------- UPDATE --------------
-------------- DELETE --------------
Task: BABEL-3705
Signed-off-by: Shameem Ahmed [email protected]
Test Scenarios Covered
Use case based -
Boundary conditions -
Arbitrary inputs -
Negative test cases -
Minor version upgrade tests -
Major version upgrade tests -
Performance tests -
Tooling impact -
Client tests -
Check List
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