supports parquet parallel reading.

use bufreader to read page header, avoid reading in fragments.

add hadoop shim.

Author: zhangli20

Cargo.lock

@@ -66,27 +66,27 @@ serde_json = { version = "1.0.96" }
 
 [patch.crates-io]
 # datafusion: branch=v42-blaze
-datafusion = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "9a09e14"}
-datafusion-common = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "9a09e14"}
-datafusion-expr = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "9a09e14"}
-datafusion-execution = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "9a09e14"}
-datafusion-optimizer = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "9a09e14"}
-datafusion-physical-expr = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "9a09e14"}
-orc-rust = { git = "https://github.com/blaze-init/datafusion-orc.git", rev = "9c74ac3"}
+datafusion = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "2bc42ea73"}
+datafusion-common = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "2bc42ea73"}
+datafusion-expr = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "2bc42ea73"}
+datafusion-execution = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "2bc42ea73"}
+datafusion-optimizer = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "2bc42ea73"}
+datafusion-physical-expr = { git = "https://github.com/blaze-init/arrow-datafusion.git", rev = "2bc42ea73"}
+orc-rust = { git = "https://github.com/blaze-init/datafusion-orc.git", rev = "7833d7d"}
 
 # arrow: branch=v53-blaze
-arrow = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-arith = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-array = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-buffer = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-cast = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-data = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-ord = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-row = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-schema = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-select = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-arrow-string = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
-parquet = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "9dbfd9018e"}
+arrow = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-arith = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-array = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-buffer = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-cast = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-data = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-ord = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-row = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-schema = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-select = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+arrow-string = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
+parquet = { git = "https://github.com/blaze-init/arrow-rs.git", rev = "91dc27dedf"}
 
 # serde_json: branch=v1.0.96-blaze
 serde_json = { git = "https://github.com/blaze-init/json", branch = "v1.0.96-blaze" }

Cargo.toml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.blaze</groupId>
+    <artifactId>blaze-engine</artifactId>
+    <version>${revision}</version>
+    <relativePath>../</relativePath>
+  </parent>
+  <groupId>org.blaze</groupId>
+  <artifactId>hadoop-shim</artifactId>
+  <packaging>jar</packaging>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.scala-lang</groupId>
+      <artifactId>scala-library</artifactId>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.scala-lang.modules</groupId>
+      <artifactId>scala-java8-compat_2.12</artifactId>
+      <version>0.9.1</version>
+    </dependency>
+    <dependency>
+      <groupId>org.scalatest</groupId>
+      <artifactId>scalatest_${scalaVersion}</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.hadoop</groupId>
+      <artifactId>hadoop-client-api</artifactId>
+      <version>3.4.0</version>
+      <scope>provided</scope>
+    </dependency>
+  </dependencies>
+</project>