Public/Find-Subset.ps1
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function Find-Subset { [cmdletbinding()] param ( [Parameter(Mandatory = $true)] [string]$Database, [Parameter(Mandatory = $false)] [TableInfo2[]]$IgnoredTables, [Parameter(Mandatory = $true)] [DatabaseInfo]$DatabaseInfo, [Parameter(Mandatory = $false)] [ColorMap]$ColorMap = $null, [Parameter(Mandatory = $false)] [bool]$FullSearch = $false, [Parameter(Mandatory = $true)] [SqlConnectionInfo]$ConnectionInfo ) $outgoingCache = New-Object "System.Collections.Generic.Dictionary[[string], [string]]" $incomingCache = New-Object "System.Collections.Generic.Dictionary[[string], [string]]" function CreateHandleOutgoingQuery { param ( [TableInfo]$table, [int]$color, [int]$depth ) $result = "DECLARE @count INT = 0 " $signature = $structure.Tables[$table] $slice = $structure.GetSliceName($signature) $primaryKey = $table.PrimaryKey $tableId = $tablesGroupedByName[$table.SchemaName + ", " + $table.TableName].Id $cond = "" for ($i = 0; $i -lt $table.PrimaryKey.Count; $i++) { if ($i -gt 0) { $cond += " and " } $cond = $cond + "(p.Key" + $i + " = s.Key" + $i + ")" } foreach ($fk in $table.ForeignKeys) { if ([TableInfo2]::IsIgnored($fk.Schema, $fk.Table, $ignoredTables) -eq $true) { continue } # default new color if ($color -eq [int][Color]::Green) { $newColor = [int][Color]::Green } else { $newColor = [int][Color]::Red } if ($null -ne $ColorMap) { $items = $ColorMap.Items | Where-Object { ($_.SchemaName -eq $fk.Schema) -and ($_.TableName -eq $fk.Table) } $items = $items | Where-Object { ($null -eq $_.Condition) -or ((($_.Condition.SourceSchemaName -eq $fk.FkSchema) -or ("" -eq $_.Condition.SourceSchemaName)) -and (($_.Condition.SourceTableName -eq $fk.FkTable) -or ("" -eq $_.Condition.SourceTableName))) } if (($null -ne $items) -and ($null -ne $items.ForcedColor)) { $newColor = [int]$items.ForcedColor.Color } } $baseTable = $DatabaseInfo.Tables | Where-Object { ($_.SchemaName -eq $fk.Schema) -and ($_.TableName -eq $fk.Table) } $baseTableId = $tablesGroupedByName[$fk.Schema + ", " + $fk.Table].Id $baseSignature = $structure.Tables[$baseTable] $baseProcessing = $structure.GetProcessingName($baseSignature) #where $columns = "" $i = 0 foreach ($fkColumn in $fk.FkColumns) { if ($i -gt 0) { $columns += " and " } $columns = $columns + " f." + $fkColumn.Name + " = p.Key" + $i $i += 1 } $where = " WHERE " + $fk.FkColumns[0].Name + " IS NOT NULL AND NOT EXISTS(SELECT * FROM $($baseProcessing) p WHERE p.[Color] = " + $newColor + " and p.[Table] = $($baseTableId) and " + $columns + ")" # from $join = " INNER JOIN $($slice) s ON " $i = 0 foreach ($primaryKeyColumn in $primaryKey) { if ($i -gt 0) { $join += " and " } $join += " s.Key" + $i + " = f." + $primaryKeyColumn.Name $i += 1 } $from = " FROM " + $table.SchemaName + "." + $table.TableName + " f " + $join # select $columns = "" $i = 0 foreach ($fkColumn in $fk.FkColumns) { if ($columns -ne "") { $columns += "," } $columns = $columns + (Get-ColumnValue -ColumnName $fkColumn.Name -Prefix "f." -DataType $fkColumn.dataType) + " as val$i " $i += 1 } $select = "SELECT DISTINCT " + $columns + ", s.Depth" $sql = $select + $from + $where $columns = "" for ($i = 0; $i -lt $fk.FkColumns.Count; $i = $i + 1) { $columns = $columns + "x.val" + $i + "," } $fkId = $fkGroupedByName[$fk.FkSchema + ", " + $fk.FkTable + ", " + $fk.Name].Id $insert = " INSERT INTO $($baseProcessing) SELECT $($baseTableId), " + $columns + " " + $newColor + ", $($tableId), x.Depth + 1, $($fkId) FROM (" + $sql + ") x " $insert = $insert + " SELECT @count = @@ROWCOUNT " $result += $insert $result += " IF (@count > 0) INSERT INTO SqlSizer.Operations VALUES($($baseTableId), $($newColor), $($results.Count), 0, $($tableId), $($depth + 1), GETDATE()) " } return $result } function HandleOutgoing { param ( [TableInfo]$table, [int]$color, [int]$depth ) $key = "$($table.SchemaName)_$($table.TableName)_$($color)_$($depth)" if ($outgoingCache.ContainsKey($key)) { $query = $outgoingCache[$key] } else { $query = CreateHandleOutgoingQuery -table $table -color $color -depth $depth $outgoingCache[$key] = $query } $null = Invoke-SqlcmdEx -Sql $query -Database $Database -ConnectionInfo $ConnectionInfo -Statistics $true } function CreateIncomingQuery { param ( [TableInfo]$table, [int]$color, [int]$depth ) $result = "DECLARE @count INT = 0 " $tableId = $tablesGroupedByName[$table.SchemaName + ", " + $table.TableName].Id $slice = $structure.GetSliceName($structure.Tables[$table]) foreach ($referencedByTable in $table.IsReferencedBy) { $fks = $referencedByTable.ForeignKeys | Where-Object { ($_.Schema -eq $table.SchemaName) -and ($_.Table -eq $table.TableName) } foreach ($fk in $fks) { if ([TableInfo2]::IsIgnored($fk.FkSchema, $fk.FkTable, $ignoredTables) -eq $true) { continue } $top = $null $maxDepth = $null $newColor = $null # default new color if ($color -eq [int][Color]::Green) { if ($FullSearch -eq $true) { $newColor = [int][Color]::Green } else { $newColor = [int][Color]::Yellow } } if ($color -eq [int][Color]::Purple) { $newColor = [int][Color]::Red } if ($color -eq [int][Color]::Blue) { $newColor = [int][Color]::Blue } # forced color from color map if ($null -ne $ColorMap) { $items = $ColorMap.Items | Where-Object { ($_.SchemaName -eq $fk.FkSchema) -and ($_.TableName -eq $fk.FkTable) } $items = $items | Where-Object { ($null -eq $_.Condition) -or ($_.Condition.FkName -eq $fk.Name) -or ((($_.Condition.SourceSchemaName -eq $fk.Schema) -or ("" -eq $_.Condition.SourceSchemaName)) -and (($_.Condition.SourceTableName -eq $fk.Table) -or ("" -eq $_.Condition.SourceTableName))) } if (($null -ne $items) -and ($null -ne $items.Condition)) { $top = [int]$items.Condition.Top } if (($null -ne $items) -and ($null -ne $items.Condition) -and ($items.Condition.Top -ne -1)) { $top = [int]$items.Condition.Top } if (($null -ne $items) -and ($null -ne $items.Condition) -and ($items.Condition.MaxDepth -ne -1)) { $maxDepth = [int]$items.Condition.MaxDepth } if (($null -ne $items) -and ($null -ne $items.ForcedColor)) { $newColor = [int]$items.ForcedColor.Color } } $fkTable = $DatabaseInfo.Tables | Where-Object { ($_.SchemaName -eq $fk.FkSchema) -and ($_.TableName -eq $fk.FkTable) } $fkTableId = $tablesGroupedByName[$fk.FkSchema + ", " + $fk.FkTable].Id $fkSignature = $structure.Tables[$fkTable] $fkProcessing = $structure.GetProcessingName($fkSignature) $primaryKey = $referencedByTable.PrimaryKey #where $columns = "" $i = 0 foreach ($pk in $primaryKey) { if ($i -gt 0) { $columns += " and " } $columns = $columns + " f." + $pk.Name + " = p.Key" + $i $i += 1 } $where = " WHERE " + $fk.FkColumns[0].Name + " IS NOT NULL AND NOT EXISTS(SELECT * FROM $($fkProcessing) p WHERE p.[Color] = " + $newColor + " and p.[Table] = $($fkTableId) and " + $columns + ")" # prevent go-back $where += " AND s.Source <> $($fkTableId)" if ($null -ne $maxDepth) { $where += " AND s.Depth <= $($maxDepth)" } # from $join = " INNER JOIN $($slice) s ON " $i = 0 foreach ($fkColumn in $fk.FkColumns) { if ($i -gt 0) { $join += " and " } $join += " s.Key" + $i + " = f." + $fkColumn.Name $i += 1 } $from = " FROM " + $referencedByTable.SchemaName + "." + $referencedByTable.TableName + " f " + $join # select $columns = "" $i = 0 foreach ($primaryKeyColumn in $primaryKey) { if ($columns -ne "") { $columns += ", " } $columns = $columns + (Get-ColumnValue -ColumnName $primaryKeyColumn.Name -Prefix "f." -dataType $primaryKeyColumn.dataType) + " as val$i " $i += 1 } $topPhrase = " " if (($null -ne $top) -and ($top -ne -1)) { $topPhrase = " TOP $($top) " } $select = "SELECT DISTINCT " + $topPhrase + $columns + ", s.Depth" $sql = $select + $from + $where $columns = "" for ($i = 0; $i -lt $primaryKey.Count; $i = $i + 1) { $columns = $columns + "x.val" + $i + "," } $fkId = $fkGroupedByName[$fk.FkSchema + ", " + $fk.FkTable + ", " + $fk.Name].Id $insert = "INSERT INTO $($fkProcessing) SELECT $($fkTableId), " + $columns + " " + $newColor + ", $($tableId), x.Depth + 1, $($fkId) FROM (" + $sql + ") x" $insert = $insert + " SELECT @count = @@ROWCOUNT " $result += $insert $result += "IF (@count > 0) INSERT INTO SqlSizer.Operations VALUES($($fkTableId), $newColor, @count, 0, $($tableId), $($depth + 1), GETDATE())" } } return $result } function HandleIncoming { param ( [TableInfo]$table, [int]$color, [int]$depth ) $key = "$($table.SchemaName)_$($table.TableName)_$($color)_$($depth)" if ($incomingCache.ContainsKey($key)) { $query = $incomingCache[$key] } else { $query = CreateIncomingQuery -table $table -color $color -depth $depth $incomingCache[$key] = $query } $null = Invoke-SqlcmdEx -Sql $query -Database $Database -ConnectionInfo $ConnectionInfo -Statistics $true } function CreateSplitQuery { param ( [TableInfo]$table, [int]$depth ) $result = "DECLARE @count INT = 0 " $signature = $structure.Tables[$table] $processing = $structure.GetProcessingName($signature) $tableId = $tablesGroupedByName[$table.SchemaName + ", " + $table.TableName].Id $cond = "" for ($i = 0; $i -lt $table.PrimaryKey.Count; $i++) { if ($i -gt 0) { $cond += " and " } $cond = $cond + "(p.Key" + $i + " = s.Key" + $i + ")" } $columns = "" for ($i = 0; $i -lt $table.PrimaryKey.Count; $i++) { $columns = $columns + "s.Key" + $i + "," } # insert $where = " WHERE NOT EXISTS(SELECT * FROM $processing p WHERE p.[Color] = " + [int][Color]::Red + " and p.[Table] = $tableId and " + $cond + ")" $q = "INSERT INTO $processing " + "SELECT $tableId, " + $columns + " " + [int][Color]::Red + ", s.Source, s.Depth, s.Fk FROM $($slice) s" + $where $q += " SELECT @count = @@ROWCOUNT " $result += $q # update opeations $q = "INSERT INTO SqlSizer.Operations VALUES($tableId, $([int][Color]::Red), @count, 0, $($tableId), $($depth), GETDATE())" $result += $q # insert $where = " WHERE NOT EXISTS(SELECT * FROM $processing p WHERE p.[Color] = " + [int][Color]::Green + " and p.[Table] = $tableId and " + $cond + ")" $q = "INSERT INTO $processing " + "SELECT $tableId, " + $columns + " " + [int][Color]::Green + ", s.Source, s.Depth, s.Fk FROM $slice s" + $where $q += " SELECT @count = @@ROWCOUNT " $result += $q # update opeations $q = "INSERT INTO SqlSizer.Operations VALUES($tableId, $([int][Color]::Green), @count, 0, $($tableId), $depth, GETDATE())" $result += $q return $result } function Split { param ( [TableInfo]$table, [int]$color, [int]$depth ) $query = CreateSplitQuery -table $table -color $color -depth $depth $null = Invoke-SqlcmdEx -Sql $query -Database $Database -ConnectionInfo $ConnectionInfo -Statistics $true } # save start time $start = Get-Date # get meta data $structure = [Structure]::new($DatabaseInfo) $sqlSizerInfo = Get-SqlSizerInfo -Database $Database -ConnectionInfo $ConnectionInfo $tablesGroupedById = $sqlSizerInfo.Tables | Group-Object -Property Id -AsHashTable -AsString $tablesGroupedByName = $sqlSizerInfo.Tables | Group-Object -Property SchemaName, TableName -AsHashTable -AsString $fkGroupedByName = $sqlSizerInfo.ForeignKeys | Group-Object -Property FkSchemaName, FkTableName, Name -AsHashTable -AsString # init $null = Initialize-Statistics -Database $Database -ConnectionInfo $ConnectionInfo -DatabaseInfo $DatabaseInfo $interval = 5 $percent = 0 while ($true) { # Progress handling $totalSeconds = (New-TimeSpan -Start $start -End (Get-Date)).TotalSeconds if ($totalSeconds -gt ($lastTotalSeconds + $interval)) { $lastTotalSeconds = $totalSeconds $progress = Get-SubsetProgress -Database $Database -ConnectionInfo $ConnectionInfo $percent = (100 * ($progress.Processed / ($progress.Processed + $progress.ToProcess))) Write-Progress -Activity "Finding subset" -PercentComplete $percent } # Logic $q = "SELECT TOP 1 [Table], [ToProcess], [Color], [Depth] FROM [SqlSizer].[Operations] WHERE [Processed] = 0 GROUP BY [Table], [ToProcess], [Depth], [Color] ORDER BY [Depth] ASC, [ToProcess] DESC" $first = Invoke-SqlcmdEx -Sql $q -Database $Database -ConnectionInfo $ConnectionInfo -Statistics $true if ($null -eq $first) { Write-Progress -Activity "Finding subset" -Completed break } # load node info $tableId = $first.Table $color = $first.Color $depth = $first.Depth $tableData = $tablesGroupedById["$($tableId)"] $table = $DatabaseInfo.Tables | Where-Object { ($_.SchemaName -eq $tableData.SchemaName) -and ($_.TableName -eq $tableData.TableName) } $signature = $structure.Tables[$table] $slice = $structure.GetSliceName($signature) $processing = $structure.GetProcessingName($signature) Write-Progress -Activity "Finding subset" -CurrentOperation "Slice for $($table.SchemaName).$($table.TableName) table is being processed with color $([Color]$color)" -PercentComplete $percent $keys = "" for ($i = 0; $i -lt $table.PrimaryKey.Count; $i++) { $keys = $keys + "Key" + $i + "," } $q = "TRUNCATE TABLE $($slice)" $null = Invoke-SqlcmdEx -Sql $q -Database $Database -ConnectionInfo $ConnectionInfo $q = "INSERT INTO $($slice) " + "SELECT " + $keys + " [Source], [Depth], [Fk] FROM $($processing) WHERE [Depth] = $($depth) AND [Color] = " + $color + " AND [Table] = $tableId" $null = Invoke-SqlcmdEx -Sql $q -Database $Database -ConnectionInfo $ConnectionInfo -Statistics $true # Green/Purple/Red color if (($color -eq [int][Color]::Red) -or (($FullSearch -eq $true) -and ($color -eq [int][Color]::Green)) -or ($color -eq [int][Color]::Purple)) { HandleOutgoing -table $table -color $color -depth $depth } # Green/Purple/Blue Color if (($color -eq [int][Color]::Green) -or ($color -eq [int][Color]::Purple) -or ($color -eq [int][Color]::Blue)) { HandleIncoming -table $table -color $color -depth $depth } # Yellow -> Split into Red and Green if ($color -eq [int][Color]::Yellow) { Split -table $table -depth $depth } # update operations $q = "UPDATE SqlSizer.Operations SET Processed = 1 WHERE [Table] = $tableId and [Color] = $color and [Depth] = $depth" $null = Invoke-SqlcmdEx -Sql $q -Database $Database -ConnectionInfo $ConnectionInfo -Statistics $true } } # SIG # Begin signature block # MIIoigYJKoZIhvcNAQcCoIIoezCCKHcCAQExDzANBglghkgBZQMEAgEFADB5Bgor # BgEEAYI3AgEEoGswaTA0BgorBgEEAYI3AgEeMCYCAwEAAAQQH8w7YFlLCE63JNLG # KX7zUQIBAAIBAAIBAAIBAAIBADAxMA0GCWCGSAFlAwQCAQUABCCKI1E90lNUoVnE # 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