feat: Implement an unordered scanner for append mode #3598
Merged
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What's changed and what's your intention?
This PR implements a new scanner for append only regions.
ScanInput
struct to keep fields required to build a scannerUnorderedScan
to scan all sourcesUnorderedScan
is unspecificscan_parallelism > 1
, it scans sources in parallelUnorderedScan
andSeqScan
useScanInput
to construct sourcesUnorderedScan
for query if it is append only (append_mode = true
)SeqScan
ifappend_mode = false
SeqScan
Checklist