Release notes for 1.20.0
Release notes for 1.20.0

xhoong/incubator-calcite,julianhyde/calcite,vlsi/calcite,looker-open-source/calcite,vlsi/calcite,julianhyde/calcite,apache/calcite,datametica/calcite,julianhyde/calcite,julianhyde/calcite,datametica/calcite,jcamachor/calcite,looker-open-source/calcite,xhoong/incubator-calcite,googleinterns/calcite,datametica/calcite,apache/calcite,looker-open-source/calcite,vlsi/calcite,jcamachor/calcite,datametica/calcite,googleinterns/calcite,xhoong/incubator-calcite,looker-open-source/calcite,datametica/calcite,julianhyde/calcite,datametica/calcite,jcamachor/calcite,jcamachor/calcite,vlsi/calcite,googleinterns/calcite,looker-open-source/calcite,jcamachor/calcite,apache/calcite,googleinterns/calcite,vlsi/calcite,xhoong/incubator-calcite,looker-open-source/calcite,apache/calcite,vlsi/incubator-calcite,apache/calcite,apache/calcite,vlsi/incubator-calcite,julianhyde/calcite,googleinterns/calcite,vlsi/calcite,jcamachor/calcite,googleinterns/calcite