chore: Move string kernels and expressions to spark-expr crate (apache#1164)

* Move string kernels and expressions to spark-expr crate

* remove unused hash kernel

* remove unused dependencies

Author: andygrove

native/Cargo.lock

@@ -41,7 +41,6 @@ arrow-buffer = { workspace = true }
 arrow-data = { workspace = true }
 arrow-schema = { workspace = true }
 parquet = { workspace = true, default-features = false, features = ["experimental"] }
-half = { version = "2.4.1", default-features = false }
 futures = { workspace = true }
 mimalloc = { version = "*", default-features = false, optional = true }
 tokio = { version = "1", features = ["rt-multi-thread"] }
@@ -62,7 +61,6 @@ rand = { workspace = true}
 num = { workspace = true }
 bytes = "1.5.0"
 tempfile = "3.8.0"
-ahash = { version = "0.8", default-features = false }
 itertools = "0.11.0"
 paste = "1.0.14"
 datafusion-common = { workspace = true }
@@ -102,10 +100,6 @@ harness = false
 name = "bit_util"
 harness = false
 
-[[bench]]
-name = "hash"
-harness = false
-
 [[bench]]
 name = "row_columnar"
 harness = false

native/core/Cargo.toml

@@ -23,7 +23,6 @@ use crate::errors::CometError;
 pub mod bloom_filter_agg;
 pub mod bloom_filter_might_contain;
 pub mod negative;
-pub mod strings;
 pub mod subquery;
 pub mod unbound;
 

native/core/benches/hash.rs

@@ -25,12 +25,8 @@ use crate::{
         datafusion::{
             expressions::{
                 bloom_filter_agg::BloomFilterAgg,
-                bloom_filter_might_contain::BloomFilterMightContain,
-                checkoverflow::CheckOverflow,
-                negative,
-                strings::{Contains, EndsWith, Like, StartsWith, StringSpaceExpr, SubstringExpr},
-                subquery::Subquery,
-                unbound::UnboundColumn,
+                bloom_filter_might_contain::BloomFilterMightContain, checkoverflow::CheckOverflow,
+                negative, subquery::Subquery, unbound::UnboundColumn,
             },
             operators::expand::CometExpandExec,
             shuffle_writer::ShuffleWriterExec,
@@ -90,9 +86,10 @@ use datafusion_comet_proto::{
     spark_partitioning::{partitioning::PartitioningStruct, Partitioning as SparkPartitioning},
 };
 use datafusion_comet_spark_expr::{
-    ArrayInsert, Avg, AvgDecimal, BitwiseNotExpr, Cast, Correlation, Covariance, CreateNamedStruct,
-    DateTruncExpr, GetArrayStructFields, GetStructField, HourExpr, IfExpr, ListExtract, MinuteExpr,
-    NormalizeNaNAndZero, RLike, SecondExpr, SparkCastOptions, Stddev, SumDecimal,
+    ArrayInsert, Avg, AvgDecimal, BitwiseNotExpr, Cast, Contains, Correlation, Covariance,
+    CreateNamedStruct, DateTruncExpr, EndsWith, GetArrayStructFields, GetStructField, HourExpr,
+    IfExpr, Like, ListExtract, MinuteExpr, NormalizeNaNAndZero, RLike, SecondExpr,
+    SparkCastOptions, StartsWith, Stddev, StringSpaceExpr, SubstringExpr, SumDecimal,
     TimestampTruncExpr, ToJson, Variance,
 };
 use datafusion_common::scalar::ScalarStructBuilder;