80 lines
3.4 KiB
PowerShell
80 lines
3.4 KiB
PowerShell
# Apply ItemValues Optimized Indexes
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# These indexes target the critical ItemValues table performance issue
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# Note: Creates SQL file first, then executes it to avoid CONCURRENTLY transaction issues
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. .\db-config.ps1
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host "Creating Optimized ItemValues Indexes" -ForegroundColor Cyan
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host ""
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Write-Host "Target: library.ItemValues table" -ForegroundColor Yellow
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Write-Host "Problem: 1.3 BILLION rows being scanned sequentially" -ForegroundColor Red
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Write-Host "Solution: 3 targeted indexes" -ForegroundColor Green
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Write-Host ""
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Write-Host "This may take 10-30 minutes..." -ForegroundColor Yellow
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Write-Host ""
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# Create temporary SQL file (CONCURRENTLY requires running outside transaction)
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$tempSqlFile = "temp_itemvalues_indexes.sql"
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$sqlContent = @"
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-- Optimized indexes for ItemValues table
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-- Fixes the 1.3 billion row sequential scan issue
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-- Index 1: CleanValue lookups (for genre/tag searches)
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_itemvalues_cleanvalue
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ON library."ItemValues" ("CleanValue")
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WHERE "CleanValue" IS NOT NULL;
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-- Index 2: Value lookups (for direct value searches)
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_itemvalues_value
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ON library."ItemValues" ("Value")
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WHERE "Value" IS NOT NULL;
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-- Index 3: ItemValueId + CleanValue for joins (ItemValuesMap to ItemValues)
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_itemvalues_id_cleanvalue
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ON library."ItemValues" ("ItemValueId", "CleanValue");
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"@
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# Write SQL to temp file WITHOUT BOM (UTF8 without BOM)
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[System.IO.File]::WriteAllText((Join-Path $PWD $tempSqlFile), $sqlContent, (New-Object System.Text.UTF8Encoding $false))
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Write-Host "Executing index creation script..." -ForegroundColor Cyan
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Write-Host ""
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# Execute the SQL file (allows CONCURRENTLY to work)
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& $PSQL_PATH -h $DB_HOST -p $DB_PORT -U $DB_USER -d $DB_NAME -f $tempSqlFile
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if ($LASTEXITCODE -eq 0) {
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Write-Host ""
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Write-Host "[OK] All 3 indexes created successfully!" -ForegroundColor Green
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} else {
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Write-Host ""
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Write-Host "[FAILED] Some indexes may have failed to create" -ForegroundColor Red
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Write-Host "Check the output above for details" -ForegroundColor Yellow
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}
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# Clean up temp file
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Remove-Item $tempSqlFile -ErrorAction SilentlyContinue
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Write-Host ""
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host "Index Creation Complete!" -ForegroundColor Green
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host ""
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# Verify indexes were created
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Write-Host "Verifying indexes..." -ForegroundColor Yellow
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$queryVerify = "SELECT indexrelname as indexname, pg_size_pretty(pg_relation_size(indexrelid)) as size FROM pg_stat_user_indexes WHERE schemaname = 'library' AND relname = 'ItemValues' AND indexrelname LIKE 'idx_itemvalues_%' ORDER BY indexrelname;"
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& $PSQL_PATH -h $DB_HOST -p $DB_PORT -U $DB_USER -d $DB_NAME -c $queryVerify
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Write-Host ""
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Write-Host "Next steps:" -ForegroundColor Cyan
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Write-Host "1. Use Jellyfin normally - browse, filter by genre and tags" -ForegroundColor Gray
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Write-Host "2. Wait 1 week" -ForegroundColor Gray
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Write-Host "3. Run diagnostics again using db-quick.ps1" -ForegroundColor Gray
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Write-Host "4. Check improvement in ItemValues sequential scans" -ForegroundColor Gray
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Write-Host ""
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Write-Host "Expected improvement: 70-90 percent faster genre and tag queries!" -ForegroundColor Green
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