e2pg: add integration update table #188
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This table will be used to control backfill tasks. The task table keeps
a history of blocks processed, but they are used for detecting a
re-organization. It does not track an integration's individual progress.
By introducing the intg table, we now can know the precise set of blocks
that an integration has processed.
This will enable a backfill task to group a set of integrations that
need backfilling and process block history based on the needs of the
integration.
This commit also introduces the notion of e2pg.{task,intg} pruning. We
keep around the last 200 blocks for each src_name / src_name,name. This
should help keep queries on this table fast while also preserving
history for reorgs and debugging.
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This table will be used to control backfill tasks. The task table keeps a history of blocks processed, but they are used for detecting a re-organization. It does not track an integration's individual progress.
By introducing the intg table, we now can know the precise set of blocks that an integration has processed.
This will enable a backfill task to group a set of integrations that need backfilling and process block history based on the needs of the integration.
This commit also introduces the notion of e2pg.{task,intg} pruning. We keep around the last 200 blocks for each src_name / src_name,name. This should help keep queries on this table fast while also preserving history for reorgs and debugging.