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Support of MySQL 5.6 and 5.7 #24

Merged
merged 12 commits into from
Dec 6, 2020
Merged

Support of MySQL 5.6 and 5.7 #24

merged 12 commits into from
Dec 6, 2020

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dbeatty10
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resolves #21
resolves #22

Description

Versions of MySQL prior to 8.0 do not support Common Table Expressions (CTE).

The effects are:

  • ephemeral materializations aren't supported for MySQL 5.6 and 5.7
  • code using CTE needed conversion to subqueries instead

MySQL 5.6 reaches the official end of support in Feb 2021. MySQL 5.7 reaches the end of support in Oct 2023.

Checklist

  • I have run this code in development and it appears to resolve the stated issue
  • This PR includes tests, or tests are not required/relevant for this PR
  • I have updated the CHANGELOG.md with information about my change

@dbeatty10 dbeatty10 marked this pull request as ready for review December 6, 2020 14:46
@dbeatty10 dbeatty10 merged commit 9e0960d into main Dec 6, 2020
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Test MySQL 5.6 Test MySQL 5.7
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