diff --git a/.github/workflows/analysis.yml b/.github/workflows/analysis.yml
new file mode 100644
index 000000000..7920a2fc5
--- /dev/null
+++ b/.github/workflows/analysis.yml
@@ -0,0 +1,67 @@
+name: Analysis
+
+on:
+  push:
+    branches:
+      - master
+      - develop
+      - 0.2.x
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+  workflow_dispatch:
+    inputs:
+      pr:
+        description: "Pull request#"
+        required: false
+
+jobs:
+  static:
+    runs-on: ubuntu-latest
+    name: Static code analysis
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v2
+      - name: Check out head
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+        if: github.event_name == 'pull_request'
+      - name: Check out PR
+        run: |
+          git fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 \
+            origin pull/${{ github.event.inputs.pr }}/head:the-pr && git checkout the-pr
+        if: github.event.inputs.pr != ''
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: Cache SonarCloud packages
+        uses: actions/cache@v1
+        with:
+          path: ~/.sonar/cache
+          key: ${{ runner.os }}-sonar
+          restore-keys: ${{ runner.os }}-sonar
+      - name: Cache Maven packages
+        uses: actions/cache@v1
+        with:
+          path: ~/.m2
+          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-m2
+      - name: Check style and spell
+        uses: zhicwu/checkstyle-action@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          reporter: 'github-pr-check'
+          # added,diff_context,file,nofilter
+          filter_mode: 'added'
+        if: github.event_name == 'pull_request' || github.event.inputs.pr != ''
+      - name: Build and analyze
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+        run: |
+          find . -type f -name "log4j.*" -exec rm -fv '{}' \;
+          mvn -q --batch-mode -Panalysis verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index aa3455c0a..d45e36794 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -1,6 +1,11 @@
 name: Benchmark
 
 on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
   workflow_dispatch:
     inputs:
       clickhouse:
@@ -28,7 +33,52 @@ on:
         required: false
 
 jobs:
-  benchmark:
+  benchmark-pull-request:
+    runs-on: ubuntu-latest
+    name: Benchmark pull request
+    if: github.event_name == 'pull_request'
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - name: Extract version
+        id: version
+        run: |
+          echo ::set-output name=value::$(grep '<revision>' pom.xml | sed -e 's|.*>\(.*\)<.*|\1|')
+      - name: Update version and group id
+        run: |
+          find . -type f -name "pom.xml" -exec sed -i -e 's|${revision}|${{ steps.version.outputs.value }}|g' \
+            -e 's|^\(    <version>\).*\(</version>\)$|\1${{ steps.version.outputs.value }}\2|' \
+            -e 's|${parent.groupId}|tech.clickhouse|g' -e 's|.*argLine.*timezone=.*||g' '{}' \;
+          find . -type f -name "log4j.*" -exec rm -fv '{}' \;
+      - name: Build project
+        run: |
+          mvn --batch-mode --update-snapshots -q -DskipTests install
+          cd clickhouse-benchmark
+          mvn --batch-mode --update-snapshots install
+          java -jar target/benchmarks.jar -rf text -p client=clickhouse-jdbc Basic
+          echo "BENCHMARK_REPORT<<EOF" >> $GITHUB_ENV
+          cat jmh-result.text >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+          cd -
+      - name: Comment PR
+        uses: actions/github-script@v3
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            if (process.env.BENCHMARK_REPORT) {
+              github.issues.createComment({
+                issue_number: context.issue.number,
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                body: '```\n' + process.env.BENCHMARK_REPORT + '\n```'
+              });
+            }
+
+  benchmark-on-demand:
     runs-on: ubuntu-latest
     name: Benchmark on demand
     if: github.event_name == 'workflow_dispatch'
@@ -47,9 +97,10 @@ jobs:
         continue-on-error: true
       - name: Update version and group id
         run: |
-          find . -type f -name "pom.xml" -exec sed -i -e 's|${revision}|${{ github.event.inputs.driver }}|g' \
-            -e 's|${parent.groupId}|tech.clickhouse|g' '{}' \;
-          sed -i -e 's|^\(    <version>\).*\(</version>\)$|\1${{ github.event.inputs.driver }}\2|' pom.xml
+          find . -type f -name "pom.xml" -exec sed -i -e 's|${revision}|${{ github.event.inputs.version }}|g' \
+            -e 's|^\(    <version>\).*\(</version>\)$|\1${{ github.event.inputs.driver }}\2|' \
+            -e 's|${parent.groupId}|tech.clickhouse|g' -e 's|.*argLine.*timezone=.*||g' '{}' \;
+          find . -type f -name "log4j.*" -exec rm -fv '{}' \;
         continue-on-error: true
       - name: Install driver as needed
         run: mvn --batch-mode --update-snapshots -q -DskipTests install
@@ -58,8 +109,7 @@ jobs:
       - name: Build project
         run: |
           cd clickhouse-benchmark
-          mvn --batch-mode --update-snapshots -Drevision=${{ github.event.inputs.driver }} \
-            -DclickhouseVersion=${{ github.event.inputs.clickhouse }} install
+          mvn --batch-mode --update-snapshots -DclickhouseVersion=${{ github.event.inputs.clickhouse }} install
           java -jar target/benchmarks.jar -rf json ${{ github.event.inputs.options }} > output.txt
           echo "BENCHMARK_REPORT<<EOF" >> $GITHUB_ENV
           tail -n +$(grep -n '^REMEMBER:' output.txt | tail -1 | awk -F: '{print $1+6}') output.txt | head -n -2 | grep -v ':·' >> $GITHUB_ENV
@@ -94,7 +144,7 @@ jobs:
           echo ::set-output name=hash::$(git log --pretty=format:'%H' -n 1)
         id: commit
         continue-on-error: true
-      - name: 'Comment PR'
+      - name: Comment PR
         uses: actions/github-script@v3
         if: github.event.inputs.pr != ''
         env:
@@ -117,8 +167,9 @@ jobs:
             const flag = result === 'success'
               ? ':green_circle:'
               : (result === 'failure' ? ':red_circle:' : ':yellow_circle:');
-            const msg = `${flag} [benchmark](${compareUrl}) using JDK [${process.env.JAVA_VERSION}] and ClickHouse [${process.env.CLICKHOUSE_VRESION}]: [${result}](${buildUrl})`
-              + '<details>\n<summary>Expand to see details...</summary>\n\n```\n'
-              + process.env.BENCHMARK_REPORT || ''
-              + '\n```\n</details>';
+            let msg = `${flag} [benchmark](${compareUrl}) using JDK [${process.env.JAVA_VERSION}] and ClickHouse [${process.env.CLICKHOUSE_VRESION}]: [${result}](${buildUrl})`;
+            if (result === 'success') {
+              msg = msg + '<details>\n<summary>Expand to see details...</summary>\n\n```\n'
+                + process.env.BENCHMARK_REPORT || '' + '\n```\n</details>';
+            }
             github.issues.createComment({ issue_number, owner, repo, body: msg });
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bee23239a..f362b2ec8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,6 +21,12 @@ on:
       - "docs/**"
       - "**/CHANGELOG"
 
+  workflow_dispatch:
+    inputs:
+      pr:
+        description: "Pull request#"
+        required: false
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -33,6 +39,11 @@ jobs:
     steps:
       - name: Check out Git repository
         uses: actions/checkout@v2
+      - name: Check out PR
+        run: |
+          git fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 \
+            origin pull/${{ github.event.inputs.pr }}/merge:merged-pr && git checkout merged-pr
+        if: github.event.inputs.pr != ''
       - name: Set up JDK ${{ matrix.java }}
         uses: actions/setup-java@v1
         with:
@@ -45,5 +56,25 @@ jobs:
           key: ${{ runner.os }}-build-${{ hashFiles('**/pom.xml') }}
           restore-keys: |
             ${{ runner.os }}-build-
+      - name: Generate build properties
+        uses: actions/github-script@v3
+        id: props
+        env:
+          CURRENT_VERSION: ${{ steps.version.outputs.value }}
+        with:
+          script: |
+            const timezones = [
+              'Asia/Chongqing', 'America/Los_Angeles', 'Etc/UTC', 'Europe/Berlin', 'Europe/Moscow'
+            ];
+            // surprise me
+            return {
+                clickhouse: timezones[Math.floor(Math.random() * Math.floor(timezones.length))] || '',
+                java: timezones[Math.floor(Math.random() * Math.floor(timezones.length))] || ''
+            };
       - name: Build with Maven
-        run: mvn --batch-mode --update-snapshots -DclickhouseVersion=${{ matrix.clickhouse }} verify
+        run: |
+          find . -type f -name "pom.xml" -exec sed -i -e 's|.*argLine.*timezone=.*||g' '{}' \;
+          mvn --batch-mode --update-snapshots \
+            -DclickhouseVersion=${{ matrix.clickhouse }} \
+            -DclickhouseTimezone=${{ fromJSON(steps.props.outputs.result).clickhouse }} \
+            -Duser.timezone=${{ fromJSON(steps.props.outputs.result).java }} verify
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1f158a1ad..e8b53f233 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,8 +20,12 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 8
-      - run: find . -type f -name "pom.xml" -exec sed -i -e 's|${revision}|${{ github.event.inputs.version }}|g' -e 's|${parent.groupId}|tech.clickhouse|g' '{}' \;
-      - run: find . -type f -name "log4j.properties" -exec sed -i -e 's|DEBUG|WARN|g' '{}' \;
+      - name: Update pom files and reduce logs
+        run: |
+          find . -type f -name "pom.xml" -exec sed -i -e 's|${revision}|${{ github.event.inputs.version }}|g' \
+            -e 's|^\(    <version>\).*\(</version>\)$|\1${{ github.event.inputs.version }}\2|' \
+            -e 's|${parent.groupId}|tech.clickhouse|g' -e 's|.*argLine.*timezone=.*||g' '{}' \;
+          find . -type f -name "log4j.*" -exec rm -fv '{}' \;
       - name: Release Maven package
         uses: samuelmeuli/action-maven-publish@v1
         with:
@@ -40,4 +44,4 @@ jobs:
           title: "Release v${{ github.event.inputs.version }}"
           files: |
             LICENSE
-            target/clickhouse*.jar
+            **/target/clickhouse*.jar
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index f509ff779..86fef8a0d 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -11,6 +11,14 @@ on:
         description: "Java version"
         required: true
         default: "8"
+      chTz:
+        description: "ClickHouse timezone"
+        required: true
+        default: "Asia/Chongqing"
+      javaTz:
+        description: "Java timezone"
+        required: true
+        default: "America/Los_Angeles"
       pr:
         description: "Pull request#"
         required: false
@@ -66,7 +74,8 @@ jobs:
       - name: Check out commented PR
         if: steps.check.outputs.triggered == 'true'
         run: |
-          git fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 origin pull/${{ fromJSON(steps.commented.outputs.result).pr }}/merge:merged-pr && git checkout merged-pr
+          git fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 \
+            origin pull/${{ fromJSON(steps.commented.outputs.result).pr }}/merge:merged-pr && git checkout merged-pr
       - name: Set up JDK
         if: steps.check.outputs.triggered == 'true'
         uses: actions/setup-java@v1
@@ -75,14 +84,19 @@ jobs:
         continue-on-error: true
       - name: Verify with Maven
         if: steps.check.outputs.triggered == 'true'
-        run: mvn --batch-mode --update-snapshots -DclickhouseVersion=${{ fromJSON(steps.commented.outputs.result).clickhouse }} verify
+        run: |
+          find . -type f -name "pom.xml" -exec sed -i -e 's|.*argLine.*timezone=.*||g' '{}' \;
+          mvn --batch-mode --update-snapshots \
+            -DclickhouseVersion=${{ fromJSON(steps.commented.outputs.result).clickhouse }} \
+            -DclickhouseTimezone=Asia/Chongqing \
+            -Duser.timezone=America/Los_Angeles verify
         id: maven
         continue-on-error: true
       - name: Comment PR
         uses: actions/github-script@v3
         if: steps.check.outputs.triggered == 'true'
         env:
-          CLICKHOUSE_VRESION: ${{ fromJSON(steps.commented.outputs.result).clickhouse }}
+          CLICKHOUSE_VERSION: ${{ fromJSON(steps.commented.outputs.result).clickhouse }}
           JAVA_VERSION: ${{ fromJSON(steps.commented.outputs.result).java }}
           PREV_STEP_RESULT: '${{ steps.maven.outcome }}'
         with:
@@ -94,7 +108,7 @@ jobs:
             const flag = result === 'success'
               ? ':green_circle:'
               : (result === 'failure' ? ':red_circle:' : ':yellow_circle:');
-            const msg = `${flag} verify using JDK [${process.env.JAVA_VERSION}] and ClickHouse [${process.env.CLICKHOUSE_VRESION}]: [${result}](${buildUrl})`;
+            const msg = `${flag} verify using JDK [${process.env.JAVA_VERSION}] and ClickHouse [${process.env.CLICKHOUSE_VERSION}]: [${result}](${buildUrl})`;
             github.issues.createComment({ issue_number, owner, repo, body: msg });
 
   verify-on-demand:
@@ -114,15 +128,22 @@ jobs:
           java-version: ${{ github.event.inputs.java }}
         continue-on-error: true
       - name: Verify with Maven
-        run: mvn --batch-mode --update-snapshots -DclickhouseVersion=${{ github.event.inputs.clickhouse }} verify
+        run: |
+          find . -type f -name "pom.xml" -exec sed -i -e 's|.*argLine.*timezone=.*||g' '{}' \;
+          mvn --batch-mode --update-snapshots \
+            -DclickhouseVersion=${{ github.event.inputs.clickhouse }} \
+            -DclickhouseTimezone=${{ github.event.inputs.chTz }} \
+            -Duser.timezone=${{ github.event.inputs.javaTz }} verify
         id: maven
         continue-on-error: true
-      - name: 'Comment PR'
+      - name: Comment PR
         uses: actions/github-script@v3
         if: github.event.inputs.pr != ''
         env:
           PR_NO: ${{ github.event.inputs.pr }}
-          CLICKHOUSE_VRESION: ${{ github.event.inputs.clickhouse }}
+          CLICKHOUSE_TIMEZONE: ${{ github.event.inputs.chTz }}
+          CLICKHOUSE_VERSION: ${{ github.event.inputs.clickhouse }}
+          JAVA_TIMEZONE: ${{ github.event.inputs.javaTz }}
           JAVA_VERSION: ${{ github.event.inputs.java }}
           PREV_STEP_RESULT: '${{ steps.maven.outcome }}'
         with:
@@ -135,5 +156,5 @@ jobs:
             const flag = result === 'success'
               ? ':green_circle:'
               : (result === 'failure' ? ':red_circle:' : ':yellow_circle:');
-            const msg = `${flag} verify using JDK [${process.env.JAVA_VERSION}] and ClickHouse [${process.env.CLICKHOUSE_VRESION}]: [${result}](${buildUrl})`;
+            const msg = `${flag} verify using JDK [${process.env.JAVA_VERSION}, timezone=${process.env.JAVA_TIMEZONE}] and ClickHouse [${process.env.CLICKHOUSE_VERSION}, timezone=${process.env.CLICKHOUSE_TIMEZONE}]: [${result}](${buildUrl})`;
             github.issues.createComment({ issue_number, owner, repo, body: msg });