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Fix the V22 phase 1 migrations to use new tables for mapping rather than editing existing tables

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The ALTER TABLE operations previously used were causing the DB to die when run on the production TagManifest table which has 7 million rows. We instead now use new mapping tables, which is less nice, but these are temporary anyway, so hopefully we only have to deal with their ugliness for a short duration.
This commit is contained in:
Joseph Schorr 2018-08-06 16:58:27 -04:00
parent 7068010751
commit 89582438cd
7 changed files with 128 additions and 57 deletions
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4
data/model/test/test_gc.py
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@ -11,7 +11,7 @@ from playhouse.test_utils import assert_query_count
from data import model, database
from data.database import (Image, ImageStorage, DerivedStorageForImage, Label, TagManifestLabel,
ApprBlob, Manifest, TagManifest)
ApprBlob, Manifest, TagManifest, TagManifestToManifest)
from image.docker.schema1 import DockerSchema1ManifestBuilder
from test.fixtures import *
@ -162,7 +162,7 @@ def _get_dangling_label_count():
def _get_dangling_manifest_count():
manifest_ids = set([current.id for current in Manifest.select()])
referenced_by_tag_manifest = set([manifest.manifest_id for manifest in TagManifest.select()])
referenced_by_tag_manifest = set([tmt.manifest_id for tmt in TagManifestToManifest.select()])
return len(manifest_ids - referenced_by_tag_manifest)