branch master updated (4101c6b -> 7731c6f)

[Christopher Baines]

cbaines pushed a change to branch master
in repository data-service.

    from 4101c6b  Stop using exception handling when inserting blocked_builds 
entries
     new 0f22e3a  Rework insert-blocked-builds to make it more efficient
     new 48d8ee8  Have insert-blocked-builds cache when the partitions exist
     new fb9d99a  Add extended statistics on package_derivations
     new fc5f562  Add index on derivation_outputs id and derivation_id fields
     new a34bf4d  Spawn specific PostgreSQL connections for the blocked_builds 
updates
     new 8e9ab68  Use latest_build_status rather than build_status
     new 7731c6f  Tweak backfilling the blocked builds

The 7 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 guix-data-service/model/blocked-builds.scm         | 96 +++++++++++-----------
 guix-data-service/web/build-server/controller.scm  |  3 +-
 ...derivation_outputs_id_and_derivation_id_idx.sql |  7 ++
 .../package_derivations_extended_statistics.sql    |  9 ++
 ...derivation_outputs_id_and_derivation_id_idx.sql |  7 ++
 .../package_derivations_extended_statistics.sql    |  7 ++
 sqitch/sqitch.plan                                 |  2 +
 ...derivation_outputs_id_and_derivation_id_idx.sql |  7 ++
 .../package_derivations_extended_statistics.sql    |  7 ++
 9 files changed, 97 insertions(+), 48 deletions(-)
 create mode 100644 
sqitch/deploy/derivation_outputs_id_and_derivation_id_idx.sql
 create mode 100644 sqitch/deploy/package_derivations_extended_statistics.sql
 create mode 100644 
sqitch/revert/derivation_outputs_id_and_derivation_id_idx.sql
 create mode 100644 sqitch/revert/package_derivations_extended_statistics.sql
 create mode 100644 
sqitch/verify/derivation_outputs_id_and_derivation_id_idx.sql
 create mode 100644 sqitch/verify/package_derivations_extended_statistics.sql