Yang, Tong 6182f91ba8 MRS component operation guide_normal 2.0.38.SP20 version
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Yang, Tong <yangtong2@huawei.com>
Co-committed-by: Yang, Tong <yangtong2@huawei.com>
2022-12-09 14:55:21 +00:00

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<h1 class="topictitle1">Filter Result Is not Consistent with Hive when a Big Double Type Value Is Used in Filter</h1>
<div id="body1595920215434"><div class="section" id="mrs_01_1455__s28bbbc59cefa49a3b746134784cf730e"><h4 class="sectiontitle">Symptom</h4><p id="mrs_01_1455__a9e229658e0d2494285c6fb6c3cfa9250">When double data type values with higher precision are used in filters, incorrect values are returned by filtering results.</p>
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<div class="section" id="mrs_01_1455__s6157ee0fc71645cbb15545a2ecd6fc65"><h4 class="sectiontitle">Possible Causes</h4><p id="mrs_01_1455__a484bf90f9b9b4094b16817d89e93ea97">When double data type values with higher precision are used in filters, values are rounded off before comparison. Therefore, values of double data type with different fraction part are considered same.</p>
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<div class="section" id="mrs_01_1455__sfc1af3cd461443f1a5e29d50415cb652"><h4 class="sectiontitle">Troubleshooting Method</h4><p id="mrs_01_1455__a8e6c575203ce42d388003dbd701098a6">NA.</p>
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<div class="section" id="mrs_01_1455__s4601a2df66e3408498c4c95cd24c030b"><h4 class="sectiontitle">Procedure</h4><p id="mrs_01_1455__a9528393d4d604da98312b28264a2f0ac">To avoid this problem, use decimal data type when high precision data comparisons are required, such as financial applications, equality and inequality checks, and rounding operations.</p>
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<div class="section" id="mrs_01_1455__s15307a8f8ba34031b42897e64e439630"><h4 class="sectiontitle">Reference Information</h4><p id="mrs_01_1455__af93d146169f3441592d383ac2db1b03a">NA.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_1454.html">CarbonData Troubleshooting</a></div>
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