abstract common base of SQL micro-benchmarks to reduce boilerplate and standardize parameters

[clintropolis]

changes:

• adds SqlBenchmarkDatasets which contains commonly used benchmark data generator schemas
• adds SqlBaseBenchmark which contains common benchmark segment generation methods for any benchmark using SqlBenchmarkDatasets
• adds SqlBaseQueryBenchmark and SqlBasePlanBenchmark for benchmarks measuring queries and planning respectively
• migrate all existing SQL jmh benchmarks to extend SqlBaseQueryBenchmark, quite dramatically reducing the boilerplate needed to create benchmarks, and allowing the use of multiple datasources within a benchmark file
• adjustments to data generator stuff to allow passing in an ObjectMapper so that the same mapper can be used for both benchmark queries and segment generation, avoiding the need to register stuff with both mappers for benchmarks
• adds SqlProjectionsBenchmark and SqlComplexMetricsColumnsBenchmark for measuring projections and measuring complex metric compression respectively

Common options are:

• schemaType - "explicit" or "auto", to test differences between columns created with explicit dimension schemas vs AutoTypeColumnSchema that is used by schema discovery (and numbers have indexes and such)
• storageType - "MMAP", "INCREMENTAL", "FRAME_COLUMNAR", "FRAME_ROW" for testing various backing "segment" types
• stringEncoding - "UTF8", "FRONT_CODED_DEFAULT_V1", "FRONT_CODED_16_V1", for testing different string encoding strategies (only applies to "MMAP" storageType)
• complexMetricCompression - "none", "lz4" for testing different complex metric compression in IndexSpec (only applies to "MMAP" storageType)

Most query benchmarks also have a numbered query parameter, the exception being SqlGroupByBenchmark which instead has a groupingDimension parameter.

Example:

DRUID_BENCHMARK_CACHE_DIR=./tmp java --add-exports=java.base/jdk.internal.misc=ALL-UNNAMED --add-exports=java.base/jdk.internal.ref=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/sun.nio.ch=ALL-UNNAMED --add-opens=java.base/jdk.internal.ref=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED -server -jar benchmarks/target/benchmarks.jar org.apache.druid.benchmark.query.SqlProjectionsBenchmark -p stringEncoding=UTF8 -p schemaType=explicit =p storageType=MMAP -p complexCompression=lz4 -p query=0

[clintropolis]

failures are related to code coverage for changes that primarily are only used in tests or benchmarks. I should move this generator stuff into its own extension someday, but for now i think we can ignore it

[gianm]

LGTM, ok to ignore the coverage failures since this is benchmarking code.