List comments by parent opts

Optimization of list_comments_by_parent.

changed target branch from master to develop

added 1 commit

• 21642d9f - Fixes to broken dependencies

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added 1 commit

• b6bdd004 - Fixed bad name of column

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added 1 commit

• 7b8e89b5 - Another fix to schema creation.

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merged

mentioned in commit 6966f466