From 670cd279ea7789e07b6d778a21fdec68347ab305 Mon Sep 17 00:00:00 2001 From: Fabian Mastenbroek Date: Mon, 2 May 2022 14:17:55 +0200 Subject: feat(trace/api): Add support for projecting tables This change adds support for projecting certain columns of a table. This enables faster reading for tables with high number of columns. Currently, we support projection in the Parquet-based workload formats. Other formats are text-based and will probably not benefit much from projection. --- .../src/main/kotlin/org/opendc/trace/azure/AzureTraceFormat.kt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'opendc-trace/opendc-trace-azure/src/main') diff --git a/opendc-trace/opendc-trace-azure/src/main/kotlin/org/opendc/trace/azure/AzureTraceFormat.kt b/opendc-trace/opendc-trace-azure/src/main/kotlin/org/opendc/trace/azure/AzureTraceFormat.kt index 8e3e60cc..73978990 100644 --- a/opendc-trace/opendc-trace-azure/src/main/kotlin/org/opendc/trace/azure/AzureTraceFormat.kt +++ b/opendc-trace/opendc-trace-azure/src/main/kotlin/org/opendc/trace/azure/AzureTraceFormat.kt @@ -81,7 +81,7 @@ public class AzureTraceFormat : TraceFormat { } } - override fun newReader(path: Path, table: String): TableReader { + override fun newReader(path: Path, table: String, projection: List>?): TableReader { return when (table) { TABLE_RESOURCES -> { val stream = GZIPInputStream(path.resolve("vmtable/vmtable.csv.gz").inputStream()) -- cgit v1.2.3