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Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: luhuayi <luhuayi@huawei.com> Co-committed-by: luhuayi <luhuayi@huawei.com>
104 lines
8.3 KiB
HTML
104 lines
8.3 KiB
HTML
<a name="EN-US_TOPIC_0000001764492040"></a><a name="EN-US_TOPIC_0000001764492040"></a>
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<h1 class="topictitle1">PG_MATVIEW</h1>
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<div id="body0000001544821850"><p id="EN-US_TOPIC_0000001764492040__p8060118"><strong id="EN-US_TOPIC_0000001764492040__b582694113573">PG_MATVIEW</strong> records materialized view information about the current node.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001764492040__table16538171591112" frame="border" border="1" rules="all"><caption><b>Table 1 </b>PG_MATVIEW columns</caption><thead align="left"><tr id="EN-US_TOPIC_0000001764492040__row65388158110"><th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.2.2.4.1.1"><p id="EN-US_TOPIC_0000001764492040__p10163164215119"><strong id="EN-US_TOPIC_0000001764492040__b722763881314">Column</strong></p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.2.2.4.1.2"><p id="EN-US_TOPIC_0000001764492040__p111641242141120"><strong id="EN-US_TOPIC_0000001764492040__b1678716161311">Type</strong></p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.2.2.4.1.3"><p id="EN-US_TOPIC_0000001764492040__p916415426117"><strong id="EN-US_TOPIC_0000001764492040__b10905151801313">Description</strong></p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="EN-US_TOPIC_0000001764492040__row95391715161119"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p1816474261112">mvid</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p0164342131116">OID</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p116454251110">OID of the materialized view.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row1253971591117"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p116404217113">build_mode</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p8164154211117">Char</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p916444211111">Build mode of the materialized view.</p>
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<ul id="EN-US_TOPIC_0000001764492040__ul17164342121114"><li id="EN-US_TOPIC_0000001764492040__li61643426119"><strong id="EN-US_TOPIC_0000001764492040__b17208193301619">'d'</strong>: indicates "deferred", which means that data is contained in the materialized view only when the view is refreshed for the first time.</li><li id="EN-US_TOPIC_0000001764492040__li51641842131115"><strong id="EN-US_TOPIC_0000001764492040__b3120154016178">'i'</strong>: indicates "immediate", which means that the latest data is included when the materialized view is created.</li></ul>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row254011541117"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p3165642121118">refresh_method</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p12165642111110">Char</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p949139201411">Refresh method of the materialized view.</p>
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<p id="EN-US_TOPIC_0000001764492040__p1165194216117">'c': indicates complete refresh.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row125401315141114"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p1216564211114">refresh_mode</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p12165542171115">Char</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p6165144216118">Refresh mode of the materialized view.</p>
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<p id="EN-US_TOPIC_0000001764492040__p87417911572">'d': stands for demand, indicating on-demand update.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row1554091515117"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p17165164217116">rewrite_enable</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p3165124251118">Boolean</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p31661342111117">Indicates whether query rewriting of the materialized view is supported.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row1154171519111"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p316617422110">active</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p1216654211112">Boolean</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p15166842161111">Indicates whether the materialized view needs to be refreshed.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row7671332121120"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p171664426115">relnum</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p716664231117">Int</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p1016618421115">Number of materialized view base tables.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row1269183201113"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p616619427118">start_time</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p816620428111">timestamptz</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p3166184241115">Time when the materialized view is refreshed for the first time. If this parameter is left blank, the first refresh time is the current time plus the interval.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row196916326112"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p216724261120">interval</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p6167194231114">Interval</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p1167174217113">Interval for refreshing the materialized view.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row1770632161117"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p1416724241110">refresh_time</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p5167134216112">timestamptz</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p181671442171116">Last refresh time of the materialized view.</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001764492040__row1419447152914"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764492040__p2194575298">refresh_finish_time</p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764492040__p1419415782911">timestamptz</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764492040__p264321642910">End time of the last refresh of a materialized view.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_04_0561.html">System Catalogs</a></div>
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</div>
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</div>
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