feat(pg): COPY TO STDOUT

[fanyang01]

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Copilot reviewed 6 out of 8 changed files in this pull request and generated 1 suggestion.

Files not reviewed (2)

• pgserver/connection_data.go: Evaluated as low risk
• pgserver/connection_handler.go: Evaluated as low risk

Comments skipped due to low confidence (2)

pgserver/datawriter.go:25

• Ensure that the query parameter is not empty when table is nil to prevent potential issues.

query string,

pgserver/validate.go:33

• [nitpick] The variable name 'it' is ambiguous. It should be renamed to 'insertableTable'.

if it, ok := table.(sql.InsertableTable); !ok {

[VWagen1989]

LGTM! And now we can dump the data from MyDuck by PostgreSQL clients.