Oracle GoldenGate源头使用集成捕捉时，捕捉的数据流向

Extract integrates with the database logmining server, which passes logical change records (LCR) directly to Extract.
Extract does not read the redo log. LCRs are stored in streams pool area.

如上摘自：GoldenGate Integrated Capture and Integrated Replicat Healthcheck Script (文档 ID 1448324.1)

由此可见：
ogg源头使用集成捕捉时，捕捉的数据流向为：redo log（或者 archived redo log）--->stream pool（LCR）--->OGG extract process (Integrated Capture)