[pg-source] Fix timestamp precision issue with debezium #52617
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What
This PR is trying to fix the issue in https://github.com/airbytehq/oncall/issues/6857, which the timestamp data converter in pg connector use different precision for different length ts and it cause precision inconsistency with debezium
How
I changed the precision to microsecond consistently for all ts that have precision less than microsecond
Review guide
User Impact
All ts have less precision than microsecond will be converted to microsecond for postgres source connector
Can this PR be safely reverted and rolled back?