Fix retrieve common policies SQL query

[PasanT9]

• This PR fix the issue https://github.com/wso2/api-manager/issues/2673

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 44.56%. Comparing base (df47529) to head (cdce75e). Report is 4 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #12332 +/- ## ============================================ + Coverage 42.22% 44.56% +2.33% - Complexity 0 3641 +3641 ============================================ Files 1840 1840 Lines 136407 136407 Branches 19734 19734 ============================================ + Hits 57598 60788 +3190 + Misses 71882 68343 -3539 - Partials 6927 7276 +349 ``` | [Flag](https://app.codecov.io/gh/wso2/carbon-apimgt/pull/12332/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wso2) | Coverage Δ | | |---|---|---| | [integration_tests](https://app.codecov.io/gh/wso2/carbon-apimgt/pull/12332/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wso2) | `39.09% <ø> (+3.46%)` | :arrow_up: | | [unit_tests](https://app.codecov.io/gh/wso2/carbon-apimgt/pull/12332/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wso2) | `20.43% <ø> (-0.01%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wso2#carryforward-flags-in-the-pull-request-comment) to find out more.

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